Year	Dollars
1992-01-01	2666373
1997-01-01	4601424
2002-01-01	4156350
2003-01-01	3487167
2004-01-01	3908052
2005-01-01	5662180
2006-01-01	13992958
2007-01-01	27661601
2008-01-01	5740607
2009-01-01	6161633
2010-01-01	10163698
2011-01-01	2556546