Year Dollars 1992-01-01 1607304 1997-01-01 3308090 2002-01-01 1846472 2003-01-01 933288 2004-01-01 2226622 2005-01-01 3052523 2006-01-01 5907609 2007-01-01 3771273 2008-01-01 3790403 2009-01-01 3492935 2010-01-01 8472181 2011-01-01 9850716 2012-01-01 9438149 2013-01-01 10042524 2014-01-01 12846607 2015-01-01 13684959 2016-01-01 30176343