美國債規模 - SERP Analysis

https://www.macromicro.me/series/5554/us-federal-debt-total

https://www.ceicdata.com/zh-hans/indicator/united-states/national-government-debt

https://hk.finance.yahoo.com/news/%25E7%25BE%258E%25E5%259C%258B%25E5%259C%258B%25E5%2582%25B5%25E7%25B8%25BD%25E9%25A1%258D%25E9%25A6%2596%25E6%25AC%25A1%25E8%25B6%2585%25E9%2581%258E38%25E5%2585%2586%25E7%25BE%258E%25E5%2585%2583-%25E4%25BA%25BA%25E5%259D%2587%25E8%25B2%25A0%25E5%2582%25B511%25E8%2590%25AC%25E7%25BE%258E%25E5%2585%2583-001548549.html

https://hao.cnyes.com/post/163173

https://www.macromicro.me/charts/1244/us-fed-assets-ngdp

https://www.macroview.club/data%3Fcode%3Dus_gov_debt

https://www.pocket.tw/school/report/ETF/3592/

https://www.oanda.com/bvi-ft/lab-education/blog/us-bond-market/

https://cn.investing.com/rates-bonds/usa-government-bonds