Year Dollars 1992-01-01 166115501 1997-01-01 377302470 2002-01-01 290203796 2003-01-01 309136876 2004-01-01 381410115 2005-01-01 326924015 2006-01-01 417058733 2007-01-01 569490491 2008-01-01 1063608385 2009-01-01 689972981 2010-01-01 1372463076 2011-01-01 1668260864 2012-01-01 2244670551 2013-01-01 2572619944 2014-01-01 2139675744 2015-01-01 1329678939 2016-01-01 1685419931