Year	Dollars
1992-01-01	154411876
1997-01-01	222498552
2002-01-01	255947837
2003-01-01	273359531
2004-01-01	271877017
2005-01-01	304345338
2006-01-01	440465040
2007-01-01	589664293
2008-01-01	564078542
2009-01-01	523688348
2010-01-01	474930757
2011-01-01	589179578
2012-01-01	781984323
2013-01-01	686741356
2014-01-01	702148552
2015-01-01	718106328