Year constant 2021 international $ 2009 1394.4907507543326 2010 1439.6209758673997 2011 1476.1420485154476 2012 1537.663355091187 2013 975.681537709467 2014 978.2531119616033 2015 1018.0819246838307 2016 1049.005028908786 2017 1107.7422941854659 2018 1160.1587593615463 2019 1168.335689246482 2020 1130.8742874759243 2021 1129.3280793169042 2022 1095.8427553487763