Year	Dollars
1992-01-01	1361149
1997-01-01	6579755
2002-01-01	4213027
2003-01-01	4478001
2004-01-01	6575335
2005-01-01	4519442
2006-01-01	4094763
2007-01-01	5298543
2008-01-01	11986275
2009-01-01	20411796
2010-01-01	20420907
2011-01-01	18287418
2012-01-01	31485227
2013-01-01	23525315
2014-01-01	29372855
2015-01-01	22145262
2016-01-01	27487353