Year Dollars 1992-01-01 22706744 1997-01-01 45896935 2002-01-01 61896818 2003-01-01 80397171 2004-01-01 141906806 2005-01-01 182243537 2006-01-01 183381692 2007-01-01 253269393 2008-01-01 262876778 2009-01-01 211478847 2010-01-01 178755955 2011-01-01 176233171 2012-01-01 176338975 2013-01-01 175010637 2014-01-01 190284005