Year constant 2015 US$ 2006 124235877.6754012 2007 122139767.83129467 2008 122089408.95776767 2009 115258312.73883724 2010 113138767.68182828 2011 120492594.37481174 2012 122207837.2855648 2013 126480022.92925413 2014 132052683.99427424 2015 146912755.71148455 2016 154376303.9611546 2017 160780597.26891345 2018 149838372.8495859 2019 164910052.7571053 2020 165685396.6944788 2021 176182164.83078575