Year	Dollars
1997-01-01	2141290
2002-01-01	1899303
2003-01-01	3433476
2004-01-01	10282518
2005-01-01	17107635
2006-01-01	7648501
2007-01-01	7546829
2008-01-01	18574172
2009-01-01	3036749
2010-01-01	7164146
2011-01-01	10350611
2012-01-01	8715498
2013-01-01	11967635
2014-01-01	15920187
2015-01-01	11077071
2016-01-01	18134480