Year	Dollars
1992-01-01	21715233
1997-01-01	27633099
2002-01-01	17960129
2003-01-01	18736509
2004-01-01	12733727
2005-01-01	15560804
2006-01-01	13795462
2007-01-01	16634137
2008-01-01	24935885
2009-01-01	17643593
2010-01-01	23788030
2011-01-01	14671662
2012-01-01	10342422
2013-01-01	15069047
2014-01-01	9640934
2015-01-01	16524639
2016-01-01	15498443