Year Dollars 1992-01-01 417106 1997-01-01 668444 2002-01-01 2159618 2003-01-01 2736177 2004-01-01 3362898 2005-01-01 2655199 2006-01-01 1879621 2007-01-01 3118938 2008-01-01 2216257 2009-01-01 2553194 2010-01-01 3019090 2011-01-01 2361746 2012-01-01 3598819 2013-01-01 3108596 2014-01-01 3055639 2015-01-01 2498150 2016-01-01 3567818