Year	Dollars
1992-01-01	1213188
1997-01-01	12882293
2002-01-01	3333691
2003-01-01	2677343
2004-01-01	4854281
2005-01-01	5368066
2006-01-01	6879052
2007-01-01	10921463
2008-01-01	16321475
2009-01-01	15678336
2010-01-01	17598657
2011-01-01	19462791
2012-01-01	39976489
2013-01-01	30926753
2014-01-01	36032686
2015-01-01	45638862
2016-01-01	29634704