Year	Dollars
1992-01-01	6959018
1997-01-01	12688850
2002-01-01	17393496
2003-01-01	32559615
2004-01-01	22537994
2005-01-01	39855835
2006-01-01	45101506
2007-01-01	38275373
2008-01-01	46887669
2009-01-01	29223660
2010-01-01	33940004
2011-01-01	55715276
2012-01-01	29627614
2013-01-01	46718455
2014-01-01	59241031
2015-01-01	66016671
2016-01-01	67433395