A total of 6.24 billion notes were printed for 2009 circulation, according to the US Bureau of Engraving and Printing here:
$2.6368 billion in ones
$1.92 billion in 384 million fives
$3.456 billion in 345.6 million tens
$14.336 billion in 716.8 million twenties
$18.560 billion in 371.2 million fifties
$178.56 billion in 1.7856 billion hundreds.