Year Dollars 1992-01-01 50290144 1997-01-01 37808362 2002-01-01 151109398 2003-01-01 134139074 2004-01-01 104007251 2005-01-01 158797141 2006-01-01 136111312 2007-01-01 107477425 2008-01-01 85524811 2009-01-01 83508343 2010-01-01 70009474 2011-01-01 96407402 2012-01-01 73137922 2013-01-01 63605435 2014-01-01 107718208 2015-01-01 81205778 2016-01-01 78554894