Year Dollars 1992-01-01 49380386 1997-01-01 94242233 2002-01-01 47121485 2003-01-01 50719325 2004-01-01 65382928 2005-01-01 69312536 2006-01-01 110523577 2007-01-01 128668305 2008-01-01 135119977 2009-01-01 102342970 2010-01-01 116390382 2011-01-01 142438065 2012-01-01 148899925 2013-01-01 160312026 2014-01-01 164414604 2015-01-01 167859095 2016-01-01 151780350