Year	Dollars
1997-01-01	15453669
2002-01-01	21480429
2003-01-01	18679756
2004-01-01	23735081
2005-01-01	29777139
2006-01-01	26275323
2007-01-01	27577016
2008-01-01	29401807
2009-01-01	29203433
2010-01-01	61752817
2011-01-01	42952556
2012-01-01	38577765
2013-01-01	29911434
2014-01-01	51518581
2015-01-01	38717958
2016-01-01	37491230