Year	Dollars
1992-01-01	5981650
1997-01-01	20081445
2002-01-01	12762954
2003-01-01	12480958
2004-01-01	13211293
2005-01-01	15105705
2006-01-01	24231028
2007-01-01	31295674
2008-01-01	36360559
2009-01-01	28465683
2010-01-01	46264155
2011-01-01	52047668
2012-01-01	47620458
2013-01-01	53350948
2014-01-01	63606482
2015-01-01	47047881
2016-01-01	53159616