Year Dollars 1992-01-01 254496 1997-01-01 238537 2002-01-01 499837 2003-01-01 457046 2004-01-01 564419 2005-01-01 302358 2006-01-01 683288 2007-01-01 322637 2008-01-01 4765531 2009-01-01 905606 2010-01-01 928739 2011-01-01 2343514 2012-01-01 2494459 2013-01-01 5193023 2014-01-01 3989356 2015-01-01 3164724 2016-01-01 2652241