Year	Dollars
1992-01-01	8617839
1997-01-01	19037115
2002-01-01	10511386
2003-01-01	7939327
2004-01-01	15770407
2005-01-01	14389104
2006-01-01	15844923
2007-01-01	18588083
2008-01-01	12462704
2009-01-01	13533510
2010-01-01	8006834
2011-01-01	13437728
2012-01-01	17094215
2013-01-01	20865397
2014-01-01	20149490
2015-01-01	15981636
2016-01-01	10624251