US , China, EU, Japan, UK, Swiss, Australia, Canada, Norway Brazil, Russia, India, Mexico, Indonesia Taiwan, HK, Korea, SG, Thailand
Then adjusting it to USD as the common denominator for comparison.
Net Foreign Assets (or foreign reserves) + Net Domestic Assets (or domestic credit, usually Money Supply M1) = Total Assets of the Central Bank Balance Sheet
In some way, the central bank balance sheet could be M2. However, I find some of the indicators don't add up and I don't have the time to check them out. This indicator is just a proxy. The issue with using central bank balance sheet to determine liquidity in the system is that it doesn't account for 1) collateral used for liquidity management in the public and private system, 2) shadow-banking financial system. As usual, US + EU + Japan publishes their data every weekly and the rest of the central banks publish monthly. I have removed any country with hard-pegged currencies except HK.