Year Dollars 1992-01-01 673169 1997-01-01 1123220 2002-01-01 2263124 2003-01-01 3013697 2004-01-01 1692495 2005-01-01 1618288 2006-01-01 1821544 2007-01-01 2138275 2008-01-01 4244568 2009-01-01 2068854 2010-01-01 3024249 2011-01-01 4341998 2012-01-01 3956118 2013-01-01 3909185 2014-01-01 5078097 2015-01-01 6040508 2016-01-01 7192121