Year	Dollars
1997-01-01	44365335
2002-01-01	8490492
2003-01-01	7763883
2004-01-01	10528598
2005-01-01	17217857
2006-01-01	21246978
2007-01-01	28899369
2008-01-01	46780148
2009-01-01	108207217
2010-01-01	46376597
2011-01-01	65388245
2012-01-01	221989444
2013-01-01	87086284
2014-01-01	390844920
2015-01-01	106142515
2016-01-01	239217566