Year	Dollars
1992-01-01	5450598
1997-01-01	8280335
2002-01-01	4166226
2003-01-01	4016020
2004-01-01	6622300
2005-01-01	6753153
2006-01-01	9303129
2007-01-01	12397256
2008-01-01	14227374
2009-01-01	10730582
2010-01-01	15051599
2011-01-01	19580027
2012-01-01	29763916
2013-01-01	39235783
2014-01-01	28110874
2015-01-01	15796681
2016-01-01	17430356