d 46% of USA Inc. Public Debt, Up From 4% in 1970 — How Much Higher Should It Go? Foreign Ownership of US Treasury Securities, CQ1:1970 — CQ2:2010 BGG wc - mee eo a a me en ns nS EE A I TO mE Top Foreign Owners, CQ2:10 China 10% = 40% Japan 9% ~~ fe wo a UK 3% 2) & Oil Exporters* 3% 2 oe I , w Brazil 2% - 2