Year	Dollars
1992-01-01	1612038
1997-01-01	1323662
2002-01-01	3275671
2003-01-01	4243773
2004-01-01	5290394
2005-01-01	8737532
2006-01-01	9142548
2007-01-01	8550212
2008-01-01	7984042
2009-01-01	9747470
2010-01-01	13859854
2011-01-01	17640655
2012-01-01	16033857
2013-01-01	18849077
2014-01-01	17563277
2015-01-01	17636415
2016-01-01	19669885