Year Dollars 1997-01-01 83446 2005-01-01 1005519 2007-01-01 476198 2008-01-01 1548204 2009-01-01 594096 2010-01-01 2001669 2011-01-01 1401642 2012-01-01 3266773 2013-01-01 3833657 2014-01-01 5384977 2015-01-01 1936357 2016-01-01 1180284