Year Dollars 1992-01-01 2149872 1997-01-01 2599686 2002-01-01 2073150 2003-01-01 2090068 2004-01-01 1680836 2005-01-01 1805065 2006-01-01 3820516 2007-01-01 9249185 2008-01-01 5486408 2009-01-01 1755877 2010-01-01 4006351 2011-01-01 5685112 2012-01-01 10559255 2013-01-01 12688476 2014-01-01 17198190 2015-01-01 10174423 2016-01-01 12897999