https://www.itochu-research.com/ja/report/2022/2225/
https://news.yahoo.co.jp/articles/57cfe0def2399be8109b8f63f36021e12da62bd5
https://www.enecho.meti.go.jp/about/special/johoteikyo/gosei_nenryo.html
https://news.yahoo.co.jp/articles/0413dca64869c661d3e889ab1a61d076fe8926d1