Year	Dollars
1992-01-01	7543554
1997-01-01	10245022
2002-01-01	16235705
2003-01-01	21542781
2004-01-01	18584632
2005-01-01	12362626
2006-01-01	18116705
2007-01-01	12983637
2008-01-01	15117563
2009-01-01	10770679
2010-01-01	12981338
2011-01-01	17725867
2012-01-01	14351901
2013-01-01	18278587
2014-01-01	22744464
2015-01-01	23348218
2016-01-01	24627839