Year Dollars 1992-01-01 2598065 2009-01-01 79730238 2010-01-01 128593842 2011-01-01 148657135 2012-01-01 149187293 2013-01-01 134118343 2014-01-01 141902117 2015-01-01 133293806 2016-01-01 151521390