Year	Dollars
1997-01-01	47026
2002-01-01	1132541
2003-01-01	1073315
2004-01-01	1696167
2005-01-01	3570608
2006-01-01	1639722
2007-01-01	1285376
2008-01-01	2353225
2009-01-01	3206153
2010-01-01	3291901
2011-01-01	4901253
2012-01-01	7582971
2013-01-01	2872078
2014-01-01	4272621
2015-01-01	4729601
2016-01-01	4162825