Year	Dollars
1992-01-01	7928760
1997-01-01	7327678
2002-01-01	7327451
2003-01-01	25155436
2004-01-01	28766317
2005-01-01	20005868
2006-01-01	18775114
2007-01-01	16598160
2008-01-01	35185573
2009-01-01	20881294
2010-01-01	34847037
2011-01-01	27644012
2012-01-01	26809273
2013-01-01	35329001
2014-01-01	41815097
2015-01-01	38039004
2016-01-01	43903081