Year Dollars 1992-01-01 12486681 1997-01-01 12938749 2002-01-01 18140185 2003-01-01 18750458 2004-01-01 24015197 2005-01-01 35044084 2006-01-01 43973101 2007-01-01 52359810 2008-01-01 57945178 2009-01-01 67759526 2010-01-01 95137455 2011-01-01 77169258 2012-01-01 71868756 2013-01-01 66284433 2014-01-01 62672141 2015-01-01 64192380 2016-01-01 67415361