Here are the actual numbers from the Wall Street Journal today:

In 2007, before the recession, federal expenditures reached $2.73 trillion. By 2009 expenditures had climbed to $3.52 trillion. In 2009 alone, overall federal spending rose 18%, or $536 billion. Throw in a $65 billion reduction in debt service costs due to low interest rates, and the overall spending increase was 22%.
In one year.