Year	Dollars
1992-01-01	7722146
1997-01-01	32146441
2002-01-01	21445858
2003-01-01	17996658
2004-01-01	29019113
2005-01-01	24623370
2006-01-01	24738298
2007-01-01	26593049
2008-01-01	30749352
2009-01-01	36541484
2010-01-01	78978397
2011-01-01	68589204
2012-01-01	135752625
2013-01-01	114786410
2014-01-01	72105703
2015-01-01	42674313
2016-01-01	55717515