Year Dollars 1992-01-01 72958 1997-01-01 473094 2002-01-01 166845 2007-01-01 47492 2008-01-01 73352 2009-01-01 112449 2010-01-01 160000 2012-01-01 126395 2013-01-01 429992 2014-01-01 319127