Year Dollars 1992-01-01 700301 1997-01-01 2058922 2002-01-01 7504322 2003-01-01 8399339 2004-01-01 12159165 2005-01-01 15306489 2006-01-01 24094838 2007-01-01 23285126 2008-01-01 20206454 2009-01-01 15178065 2010-01-01 9448651 2011-01-01 16481874 2012-01-01 22061579 2013-01-01 16143059 2014-01-01 20180347 2015-01-01 32760153 2016-01-01 40787314