Year Dollars 1992-01-01 3818381 1997-01-01 3738803 2002-01-01 3550052 2003-01-01 2260658 2004-01-01 3035056 2005-01-01 8213537 2007-01-01 10607598 2008-01-01 9480697 2009-01-01 8159828 2010-01-01 7577457 2011-01-01 7789483 2012-01-01 5951910 2013-01-01 8220415 2014-01-01 11904409 2015-01-01 10207996 2016-01-01 10915190