Year	Dollars
1992-01-01	14718199111
1997-01-01	16733386276
2002-01-01	16694615173
2003-01-01	17576374136
2004-01-01	19091823418
2005-01-01	17736210934
2006-01-01	22590131742
2007-01-01	29581413277
2008-01-01	40832835339
2009-01-01	31578786408
2010-01-01	39606353450
2011-01-01	53853840522
2012-01-01	61547761702
2013-01-01	61947051992
2014-01-01	63676554027
2015-01-01	47620889919
2016-01-01	46446109929