Year	Dollars
1992-01-01	1748697
1997-01-01	1162408
2002-01-01	1664584
2003-01-01	4595760
2004-01-01	4593007
2005-01-01	13042157
2006-01-01	21807970
2007-01-01	40822987
2008-01-01	27969870
2009-01-01	39172337
2010-01-01	38036880
2011-01-01	44559163
2012-01-01	60781324
2015-01-01	88855831