Year Dollars 1992-01-01 7802760 1997-01-01 14880775 2002-01-01 26940956 2003-01-01 25096136 2004-01-01 27991737 2005-01-01 19788807 2006-01-01 24150495 2007-01-01 24492584 2008-01-01 30946599 2009-01-01 25963146 2010-01-01 32761942 2011-01-01 37276129 2012-01-01 54443630 2013-01-01 41137053 2014-01-01 33662340 2015-01-01 31279352 2016-01-01 38691755