Year	Dollars
1997-01-01	2260531
2002-01-01	2019662
2003-01-01	4181801
2004-01-01	2777412
2005-01-01	5245167
2006-01-01	12155743
2007-01-01	21013870
2008-01-01	27281480
2009-01-01	12999792
2010-01-01	14646631
2011-01-01	13052220
2012-01-01	14037071
2013-01-01	11661253
2014-01-01	7318268
2015-01-01	7964400
2016-01-01	12060057