Year Dollars 1992-01-01 227783 1997-01-01 1583291 2002-01-01 3782104 2003-01-01 3969680 2004-01-01 3030247 2005-01-01 5712689 2006-01-01 5745017 2007-01-01 6682198 2008-01-01 7518434 2009-01-01 8237409 2010-01-01 6966802 2011-01-01 6225043 2012-01-01 7121248 2013-01-01 6982354 2014-01-01 8477958 2015-01-01 8059249 2016-01-01 10732404