Year Dollars 1992-01-01 106395 1997-01-01 181509 2002-01-01 1843499 2003-01-01 2539647 2004-01-01 3110834 2005-01-01 4816961 2006-01-01 4912987 2008-01-01 1271597 2009-01-01 263843 2010-01-01 723816 2011-01-01 626096 2012-01-01 154107 2013-01-01 75361 2014-01-01 168979 2015-01-01 128947 2016-01-01 241340