Year	Dollars
1992-01-01	89648012
1997-01-01	54082641
2002-01-01	95239953
2003-01-01	61570881
2004-01-01	105764936
2005-01-01	142386121
2006-01-01	131805697
2007-01-01	139503049
2008-01-01	172865129
2009-01-01	172123836
2010-01-01	155979441
2011-01-01	226962752
2012-01-01	231957789
2013-01-01	171679512
2014-01-01	198848912
2015-01-01	123383212
2016-01-01	60289116