Year Dollars 1992-01-01 42531529 1997-01-01 23486461 2002-01-01 26001457 2003-01-01 21187794 2004-01-01 31725282 2005-01-01 44603192 2006-01-01 41484387 2007-01-01 80083331 2008-01-01 106111389 2009-01-01 38815617 2010-01-01 49393662 2011-01-01 47672688 2012-01-01 49439203 2013-01-01 109732060 2014-01-01 91300965 2015-01-01 141158414 2016-01-01 190423295