I knew about the Japan point. Then again, this is from govt statistics and we know how the govt manipulates numbers. Also, using how much they hold as a percentage is one of those manipulations to make it seem smaller when our debt is just too high. This is what the right does on military spending when they use it as a precentage of GDP. This is also, why CPI, GDP, employment numbers and when there's a recession, depression or recovery runs counter to people's personal and business experiences.
"“Perhaps one of the most important accomplishments of my administration has been minding my own business.”" — Calvin Coolidge