Year constant 2015 US$ 1995 32117282.618837673 1996 31993257.285460398 1997 37117509.34615115 1998 41569861.194360316 1999 46148197.80932231 2000 48231866.67830539 2001 56450144.39431607 2002 58587472.068135835 2003 68394151.77862902 2004 68893399.33165912 2005 72631064.85437213 2006 82847970.79463105 2007 70206918.16637982 2008 73081444.01539224 2009 57626811.951639675 2010 61380023.1366225 2011 68419346.25950846 2012 69742680.80464047 2013 75109105.23195909 2014 73976651.63973132 2015 79614528.67311005 2016 87250848.4954018 2017 99941461.80758122 2018 112632470.71514246 2019 116030171.45660703 2020 93734588.8104159 2021 105554335.97659361 2022 111992205.77085051 2023 118561722.29076248