https://data.oecd.org/natincome/net-lending-borrowing-by-sector.htm
https://static1.squarespace.com/static/5afc0bbbf79392ced8b73dbf/t/5b07d7ce1ae6cf2a4178f587/1527240672975/SGC_Full_Report.pdf
https://www.ippr.org/files/2018-03/cej-our-common-wealth-march2018.pdf
https://www.bankofengland.co.uk/-/media/boe/files/financial-stability-paper/2018/mind-the-current-account-gap.pdf?la=en&hash=E4599C6878FBDC6480EABCC51A6A4419C963AD9F