Year Dollars 1992-01-01 2722268 1997-01-01 3481966 2002-01-01 2847389 2003-01-01 5583222 2004-01-01 13458094 2005-01-01 3286320 2006-01-01 6789100 2007-01-01 5949635 2008-01-01 7054781 2009-01-01 4613086 2010-01-01 5890135 2011-01-01 3798901 2012-01-01 2295854 2013-01-01 2510106 2014-01-01 2906744 2015-01-01 5154537 2016-01-01 2735424