Year Dollars 1997-01-01 52954435 2002-01-01 119674887 2003-01-01 93494263 2004-01-01 79889425 2005-01-01 89674352 2006-01-01 103268951 2007-01-01 109267841 2008-01-01 135679967 2009-01-01 102259684 2010-01-01 156497419 2011-01-01 163423509 2012-01-01 192669136 2013-01-01 183260107 2014-01-01 164349605 2015-01-01 208525208 2016-01-01 161931394