Year constant 2015 US$ 2004 25696142.1966553 2005 30318868.637085 2006 45841472.6257324 2007 42169158.935546905 2008 31928789.1387939 2009 56411750.793457 2010 72127372.7416992 2011 34860069.2749023 2012 29835647.583007798 2013 45886623.382568404 2014 37226284.0270996 2015 32547645.568847697 2016 41178375.244140595 2017 51476734.161377005 2018 48319358.8256836 2019 119483207.702637 2020 51379436.492919914 2021 53119098.66333011 2022 51744365.69213871