Year	Dollars
1992-01-01	7301380
1997-01-01	53447157
2002-01-01	140298655
2003-01-01	208064096
2004-01-01	349746223
2005-01-01	343916151
2006-01-01	544450793
2007-01-01	472613884
2008-01-01	493889065
2009-01-01	427562088
2010-01-01	546852581
2011-01-01	627052505
2012-01-01	662414633
2013-01-01	637273261
2014-01-01	645539826
2015-01-01	651622421
2016-01-01	582613337