Year	Dollars
1992-01-01	6154059
1997-01-01	8737744
2002-01-01	8576278
2003-01-01	12557703
2004-01-01	17827889
2005-01-01	16621940
2006-01-01	20706092
2007-01-01	21893575
2008-01-01	30608495
2009-01-01	17140964
2010-01-01	21243797
2011-01-01	39083035
2012-01-01	27264661
2013-01-01	22852109
2014-01-01	22216422
2015-01-01	14856200
2016-01-01	16793793