Year current US$ 2006 87184.51298548206 2007 89960.6830340539 2008 89704.22254821184 2009 81398.32360047862 2010 76873.19532081272 2011 75435.6152271054 2012 75466.13586999709 2013 75685.35836528277 2014 76610.64796797503 2015 77295.8456647776 2016 78858.27965628663 2017 81255.11226918659 2018 85231.77515115941 2019 89846.32109918236 2020 84018.33257925427 2021 88940.15659248248 2022 96073.76359469633