Year Dollars 1992-01-01 237851 1997-01-01 3727894 2002-01-01 1623203 2003-01-01 2548579 2004-01-01 1004513 2005-01-01 1427145 2006-01-01 3294229 2007-01-01 2234436 2008-01-01 1210629 2009-01-01 1279167 2010-01-01 1564269 2011-01-01 1382900 2012-01-01 1378708 2013-01-01 1681309 2014-01-01 2179315 2015-01-01 3554029 2016-01-01 1646031