Year Dollars 1992-01-01 3913911 1997-01-01 3758645 2002-01-01 4179477 2003-01-01 1931049 2004-01-01 947371 2005-01-01 1930141 2006-01-01 4437338 2007-01-01 3651016 2008-01-01 5225498 2009-01-01 2500586 2010-01-01 5557269 2011-01-01 8620511 2012-01-01 8910146 2014-01-01 8776285 2016-01-01 35570143