Year	Dollars
1992-01-01	3214689
1997-01-01	6480153
2002-01-01	9890752
2003-01-01	9819185
2004-01-01	10406225
2005-01-01	14157967
2006-01-01	24311193
2007-01-01	18712288
2008-01-01	21569329
2009-01-01	21283197
2010-01-01	24564322
2011-01-01	36509786
2012-01-01	34771351
2013-01-01	34195373
2014-01-01	30753457
2015-01-01	31736257
2016-01-01	40084016