> 4.31% per year is likely what the US government reports. They traditionally under report inflation (although to a greater degree over the past 20 years). Qui

> 4.31% per year is likely what the US government reports. They traditionally under report inflation (although to a greater degree over the past 20 years). Quite the opposite, in fact. The US government has traditionally overreported inflation, because the CPI was not hedonically-adjusted until the year 2000. The Billion Prices Project at MIT provides an independent measure of inflation, and it tracks the CPI quite well. (Note, though that Billion Prices uses a different basket that does not include services. Thus, it will not match exactly.)