Year	Dollars
1992-01-01	18959683
1997-01-01	17160341
2002-01-01	11362509
2003-01-01	15032860
2004-01-01	16544403
2005-01-01	22751086
2006-01-01	23366749
2007-01-01	34425471
2008-01-01	33182895
2009-01-01	37726232
2010-01-01	34277852
2011-01-01	14577105
2012-01-01	11090791
2013-01-01	16736021
2014-01-01	11725935
2015-01-01	15414167
2016-01-01	6706473