Year Dollars 1992-01-01 11444217 1997-01-01 417997 2002-01-01 665594 2003-01-01 326456 2004-01-01 444293 2005-01-01 1859485 2006-01-01 2630273 2011-01-01 845791 2012-01-01 969798 2013-01-01 313235 2014-01-01 1015621 2015-01-01 743259 2016-01-01 633807