Year Dollars 1992-01-01 21724707 1997-01-01 26516201 2002-01-01 1785383 2003-01-01 664026 2004-01-01 4679215 2005-01-01 19592416 2006-01-01 3598545 2007-01-01 5582518 2008-01-01 25846772 2009-01-01 73464321 2010-01-01 50508039 2012-01-01 49752419 2013-01-01 13477276 2014-01-01 10335997 2015-01-01 51456152 2016-01-01 16798862