Year Dollars 1992-01-01 208733 1997-01-01 178767 2002-01-01 656203 2003-01-01 249373 2004-01-01 483229 2005-01-01 540147 2006-01-01 863737 2007-01-01 1187543 2008-01-01 4672211 2009-01-01 5252759 2011-01-01 421613 2012-01-01 1304621 2013-01-01 1806299 2014-01-01 2976971 2015-01-01 1006003 2016-01-01 1504552