Year Dollars 1992-01-01 375843674 1997-01-01 640936302 2002-01-01 753714083 2003-01-01 2070393326 2004-01-01 2176727604 2005-01-01 1813106271 2006-01-01 2133453817 2007-01-01 2638909092 2008-01-01 3499793240 2009-01-01 5031680867 2010-01-01 5813830118 2011-01-01 7253567127 2012-01-01 9267382662 2013-01-01 7923567334 2014-01-01 8417113041 2015-01-01 6565817902 2016-01-01 7724581746