Year	Dollars
1992-01-01	143281031
1997-01-01	224481712
2002-01-01	232357012
2003-01-01	306307807
2004-01-01	680292836
2005-01-01	535607167
2006-01-01	468524302
2007-01-01	521759864
2008-01-01	558962073
2009-01-01	479197456
2010-01-01	465786392
2011-01-01	551255719
2012-01-01	478713186
2013-01-01	537619574
2014-01-01	485166817
2015-01-01	611515269
2016-01-01	474409889