Year	Dollars
1992-01-01	72316464
1997-01-01	234773515
2002-01-01	208718086
2003-01-01	187668561
2004-01-01	211145990
2005-01-01	192122713
2006-01-01	201986211
2007-01-01	179369508
2008-01-01	117629230
2009-01-01	117459720
2010-01-01	136095777
2011-01-01	170751164
2012-01-01	231504907
2013-01-01	246334530
2014-01-01	254452346
2015-01-01	235724061
2016-01-01	204179167