Year	Dollars
1992-01-01	7474413
1997-01-01	13627565
2002-01-01	12194222
2003-01-01	15741584
2004-01-01	20406106
2005-01-01	24485148
2006-01-01	17239101
2007-01-01	27529855
2008-01-01	29157428
2009-01-01	19863499
2010-01-01	16677828
2011-01-01	33025970
2012-01-01	19391993
2013-01-01	17749901
2014-01-01	19942651
2015-01-01	22222631
2016-01-01	19478389