{
  "commentary": "## PL──電子部品セラミックスの高収益体質\n\n連結売上高はFY05（2006年3月期）203億円からFY24（2025年3月期）718億円へ19年で3.5倍に拡大し、特に2021年3月期以降の急成長が顕著である。FY20 414億円→FY21 543億円（＋31.1%）→FY22 588億円（＋8.2%）→FY23 615億円（＋4.7%）→FY24 718億円（＋16.7%）と4期連続で過去最高を更新した。5G通信／半導体製造装置／車載EV化／生成AI関連の構造需要が同時に立ち上がり、電子部品セラミックスの本業が一気に成長フェーズに突入したのが背景となる。\n\n営業利益はFY14 24億円からFY24 269億円へ11.2倍に伸び、営業利益率はFY14 7.3%からFY24 37.5%へ30ポイント超改善した。経常利益は同期間28億円→270億円（経常利益率37.6%）、純利益は8.8億円→192億円（純利益率26.8%）と、トップラインの3.5倍化に対して利益の伸びは7-10倍超となり、規模拡大と並行して付加価値率の構造的上昇が進んでいる。FY08（2009年3月期）リーマンショック時は経常損失△1.3億円・純損失△7.7億円を計上したが、その後は一度も赤字を出さずに収益を積み上げた。\n\n## BS──積み上がる純資産と借入依存度の低さ\n\n連結純資産はFY11（2012年3月期）344億円からFY24（2025年3月期）1,279億円へ13年で3.7倍に拡大した。総資産は同期間408億円→1,423億円で、自己資本比率はFY11 84.3%からFY24 89.9%へ90%水準に達している。有利子負債合計はFY19 21億円・FY20 17億円・FY21 8.3億円・FY22 7.3億円・FY23 4億円・FY24 ほぼゼロと一貫して圧縮され、実質無借金経営に移行した。現金及び現金同等物の期末残高はFY11 100億円からFY24 716億円へ7倍超に積み上がり、運転資金・設備投資・株主還元の余力を厚く蓄えている。\n\n## CF──事業CF倍増と設備投資の連動\n\n営業CFはFY11 19億円→FY14 37億円→FY17 75億円→FY20 107億円→FY24 254億円と一貫して右肩上がりで、特にFY21以降は年100億円超を安定的に創出する体質になった。投資CFはFY22 △88億円・FY23 △108億円・FY24 △77億円と、近年は設備投資（半導体製造装置向け新工場・三春工場の石英ガラス生産設備新設等）に大型キャッシュアウトが続いており、成長投資と財務体質維持を両立させている。財務CFは一貫してマイナス（配当支払＋自己株式取得）でFY24は△15億円、株主還元の方針を継続している。\n\n## セグメント／市場構成\n\n報告セグメントは「セラミック部品事業」「照明機器事業」の2区分。FY14ではセラミック部品事業213.9億円・照明機器事業114.2億円とほぼ2:1構造だったが、FY24ではセラミック部品事業624.9億円・照明機器事業93.6億円と、本業の電子部品セラミックスが7倍超の規模に成長し、構成比は約87:13となった。照明機器事業（MARUWA SHOMEI・ヤマギワ）はLED事業として2005年以降取り組んできたが、規模・成長性とも本業に比べると限定的で、近年は本業の成長が会社全体の業績を左右する構造に明確に振れている。\n\n直近の市場別売上構成（FY24）は情報通信36.6%・車載21.9%・半導体15.0%・産業機器13.9%・照明10.2%。情報通信（次世代高速通信向け基板）と車載（EV／パワー半導体向け）が二大柱となっている。\n\n## 設備投資・減価償却\n\nセラミック部品事業のセグメント設備投資はFY14 26.4億円→FY18 40.3億円→FY19 51.1億円→FY21 34.5億円→FY22 103.1億円→FY23 95.3億円→FY24 88.5億円と、近年大型化している。減価償却費はFY14 18.9億円→FY24 44.6億円へ拡大し、両者の差から実質純投資が継続的にプラス（成長投資局面）であることが読み取れる。三春工場（福島県）の石英ガラス生産新棟（2026年3月完成予定）が次の大型案件となる。",
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      "sga": 10266,
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      "cost_others": null,
      "cost_others_jp": null,
      "gross_profit": 30408,
      "gross_profit_jp": "売上総利益",
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      "operating_profit_jp": "営業利益",
      "ordinary_profit": 21187,
      "ordinary_profit_jp": "経常利益",
      "extraordinary_income": 519,
      "extraordinary_income_jp": "特別利益",
      "extraordinary_loss": 542,
      "extraordinary_loss_jp": "特別損失",
      "net_profit": 15020,
      "net_profit_jp": "親会社株主に帰属する当期純利益"
    },
    {
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      "cost_of_sales_jp": "売上原価",
      "sga": 11192,
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      "cost_others": null,
      "cost_others_jp": null,
      "gross_profit": 30994,
      "gross_profit_jp": "売上総利益",
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      "operating_profit_jp": "営業利益",
      "ordinary_profit": 21121,
      "ordinary_profit_jp": "経常利益",
      "extraordinary_income": 264,
      "extraordinary_income_jp": "特別利益",
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      "extraordinary_loss_jp": "特別損失",
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      "net_profit_jp": "親会社株主に帰属する当期純利益"
    },
    {
      "FY": "FY24",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "sales_jp": "売上高",
      "cost_of_sales": 32377,
      "cost_of_sales_jp": "売上原価",
      "sga": 12558,
      "sga_jp": "販売費及び一般管理費",
      "cost_others": null,
      "cost_others_jp": null,
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      "gross_profit_jp": "売上総利益",
      "operating_profit": 26914,
      "operating_profit_jp": "営業利益",
      "ordinary_profit": 27033,
      "ordinary_profit_jp": "経常利益",
      "extraordinary_income": 2592,
      "extraordinary_income_jp": "特別利益",
      "extraordinary_loss": 2466,
      "extraordinary_loss_jp": "特別損失",
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      "net_profit_jp": "親会社株主に帰属する当期純利益"
    }
  ],
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "operating_cf_jp": "営業活動によるキャッシュ・フロー",
      "investing_cf": -1234,
      "investing_cf_jp": "投資活動によるキャッシュ・フロー",
      "financing_cf": 51,
      "financing_cf_jp": "財務活動によるキャッシュ・フロー",
      "cash_equivalents": 7899,
      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
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      "unit": "百万円",
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      "consolidation": "連結",
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      "operating_cf_jp": "営業活動によるキャッシュ・フロー",
      "investing_cf": -3029,
      "investing_cf_jp": "投資活動によるキャッシュ・フロー",
      "financing_cf": -700,
      "financing_cf_jp": "財務活動によるキャッシュ・フロー",
      "cash_equivalents": 5939,
      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
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      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "operating_cf_jp": "営業活動によるキャッシュ・フロー",
      "investing_cf": -1921,
      "investing_cf_jp": "投資活動によるキャッシュ・フロー",
      "financing_cf": -416,
      "financing_cf_jp": "財務活動によるキャッシュ・フロー",
      "cash_equivalents": 6146,
      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "operating_cf_jp": "営業活動によるキャッシュ・フロー",
      "investing_cf": -2249,
      "investing_cf_jp": "投資活動によるキャッシュ・フロー",
      "financing_cf": -387,
      "financing_cf_jp": "財務活動によるキャッシュ・フロー",
      "cash_equivalents": 7062,
      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
    {
      "FY": "FY09",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "operating_cf_jp": "営業活動によるキャッシュ・フロー",
      "investing_cf": -917,
      "investing_cf_jp": "投資活動によるキャッシュ・フロー",
      "financing_cf": -248,
      "financing_cf_jp": "財務活動によるキャッシュ・フロー",
      "cash_equivalents": 8864,
      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
    {
      "FY": "FY10",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "operating_cf_jp": "営業活動によるキャッシュ・フロー",
      "investing_cf": -2646,
      "investing_cf_jp": "投資活動によるキャッシュ・フロー",
      "financing_cf": -307,
      "financing_cf_jp": "財務活動によるキャッシュ・フロー",
      "cash_equivalents": 8380,
      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
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      "FY": "FY11",
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      "accounting_standard": "JGAAP",
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      "operating_cf_jp": "営業CF",
      "investing_cf": -4434.82,
      "investing_cf_jp": "投資CF",
      "financing_cf": 4255.54,
      "financing_cf_jp": "財務CF",
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      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
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      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "financing_cf_jp": "財務CF",
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      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
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      "accounting_standard": "JGAAP",
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      "operating_cf_jp": "営業CF",
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      "investing_cf_jp": "投資CF",
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      "financing_cf_jp": "財務CF",
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      "cash_equivalents_jp": "現金及び現金同等物の期末残高"
    },
    {
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      "operating_cf_jp": "営業CF",
      "investing_cf": -1881.36,
      "investing_cf_jp": "投資CF",
      "financing_cf": -877.31,
      "financing_cf_jp": "財務CF",
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      "cash_equivalents_jp": "現金同等物期末残高"
    },
    {
      "FY": "FY15",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "operating_cf_jp": "営業CF",
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      "investing_cf_jp": "投資CF",
      "financing_cf": -1405.98,
      "financing_cf_jp": "財務CF",
      "cash_equivalents": 14540.57,
      "cash_equivalents_jp": "現金同等物期末残高"
    },
    {
      "FY": "FY16",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
      "operating_cf": 5348.97,
      "operating_cf_jp": "営業CF",
      "investing_cf": -1247.7,
      "investing_cf_jp": "投資CF",
      "financing_cf": -706.89,
      "financing_cf_jp": "財務CF",
      "cash_equivalents": 17834.01,
      "cash_equivalents_jp": "現金同等物期末残高"
    },
    {
      "FY": "FY17",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "operating_cf_jp": "営業CF",
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      "investing_cf_jp": "投資CF",
      "financing_cf": -668,
      "financing_cf_jp": "財務CF",
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      "cash_equivalents_jp": "現金同等物期末残高"
    },
    {
      "FY": "FY18",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
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      "operating_cf_jp": "営業CF",
      "investing_cf": -5691,
      "investing_cf_jp": "投資CF",
      "financing_cf": -694,
      "financing_cf_jp": "財務CF",
      "cash_equivalents": 22448.37,
      "cash_equivalents_jp": "現金同等物期末残高"
    },
    {
      "FY": "FY19",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
      "operating_cf": 10719,
      "operating_cf_jp": "営業CF",
      "investing_cf": -5272,
      "investing_cf_jp": "投資CF",
      "financing_cf": 1420,
      "financing_cf_jp": "財務CF",
      "cash_equivalents": 29114.59,
      "cash_equivalents_jp": "現金同等物期末残高"
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
      "operating_cf": 10713,
      "operating_cf_jp": "営業CF",
      "investing_cf": -5376,
      "investing_cf_jp": "投資CF",
      "financing_cf": -801,
      "financing_cf_jp": "財務CF",
      "cash_equivalents": 33888,
      "cash_equivalents_jp": "現金同等物期末残高"
    },
    {
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      "investing_cf_jp": "投資CF",
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      "financing_cf_jp": "財務CF",
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      "cash_equivalents_jp": "現金同等物期末残高"
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    {
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      "cash_equivalents_jp": "現金同等物期末残高"
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      "cash_equivalents_jp": "現金同等物期末残高"
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    {
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      "financing_cf_jp": "財務CF",
      "cash_equivalents": 71568,
      "cash_equivalents_jp": "現金同等物期末残高"
    }
  ],
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      "total_assets_jp": "総資産額",
      "equity": 34406.83,
      "equity_jp": "自己資本",
      "interest_debt": null,
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      "goodwill": null,
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      "intangible_assets": null,
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      "short_debt": null,
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      "bond_jp": null
    },
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      "total_assets_jp": "総資産額",
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      "equity_jp": "自己資本",
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      "goodwill": null,
      "goodwill_jp": null,
      "intangible_assets": null,
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      "short_debt": null,
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      "bond_jp": null
    },
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      "equity_jp": "自己資本",
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      "interest_debt_jp": "有利子負債合計",
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      "securities_jp": null,
      "goodwill": 426.09,
      "goodwill_jp": "のれん",
      "intangible_assets": 876.58,
      "intangible_assets_jp": "無形固定資産・無形資産",
      "short_debt": null,
      "short_debt_jp": null,
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    },
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      "goodwill": 135.91,
      "goodwill_jp": "のれん",
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      "goodwill_jp": "のれん",
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      "goodwill_jp": null,
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      "short_debt": null,
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      "accounting_standard": "JGAAP",
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      "total_assets_jp": "総資産額",
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      "equity_jp": "自己資本",
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      "securities": null,
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      "goodwill": 249.42,
      "goodwill_jp": "のれん",
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      "intangible_assets_jp": "無形固定資産・無形資産",
      "short_debt": null,
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    {
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
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      "goodwill": 195.97,
      "goodwill_jp": "のれん",
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      "intangible_assets_jp": "無形固定資産・無形資産",
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    {
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      "unit": "百万円",
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      "FY": "FY13",
      "period": "2014/3",
      "consolidated_employees": null,
      "non_consolidated_employees": null,
      "avg_salary": null,
      "avg_age": null
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "consolidated_employees": 1684,
      "non_consolidated_employees": 322,
      "avg_salary": null,
      "avg_age": null
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "consolidated_employees": 1737,
      "non_consolidated_employees": 248,
      "avg_salary": null,
      "avg_age": null
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "consolidated_employees": 1709,
      "non_consolidated_employees": 242,
      "avg_salary": null,
      "avg_age": null
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "consolidated_employees": 1815,
      "non_consolidated_employees": 292,
      "avg_salary": null,
      "avg_age": null
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "consolidated_employees": 1867,
      "non_consolidated_employees": 295,
      "avg_salary": 7734,
      "avg_age": 41.94
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "consolidated_employees": 1580,
      "non_consolidated_employees": 325,
      "avg_salary": 7812,
      "avg_age": 41.12
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "consolidated_employees": 1380,
      "non_consolidated_employees": 358,
      "avg_salary": 7955,
      "avg_age": 41.52
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "consolidated_employees": 1297,
      "non_consolidated_employees": 343,
      "avg_salary": 8120,
      "avg_age": 41.45
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "consolidated_employees": 1309,
      "non_consolidated_employees": 587,
      "avg_salary": 8412,
      "avg_age": 41.16
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "consolidated_employees": 1380,
      "non_consolidated_employees": 625,
      "avg_salary": 8539,
      "avg_age": 43.37
    },
    {
      "FY": "FY24",
      "period": "2025/3",
      "consolidated_employees": 1332,
      "non_consolidated_employees": 651,
      "avg_salary": 8875,
      "avg_age": 43.8
    }
  ]
}