Year	Dollars
1992-01-01	13477560345
1997-01-01	22058727889
2002-01-01	25308376461
2003-01-01	27413399587
2004-01-01	28435200569
2005-01-01	31410322826
2006-01-01	34559835643
2007-01-01	39386839531
2008-01-01	41141846141
2009-01-01	30220504938
2010-01-01	38466370176
2011-01-01	42937005944
2012-01-01	44698598359
2013-01-01	46539770727
2014-01-01	46716660734
2015-01-01	46282126112
2016-01-01	44509471836