Year constant 2015 US$ 2006 1172.0696418963034 2007 1192.0309754061493 2008 1270.1746744328707 2009 1299.2864817166846 2010 1350.814659036204 2011 1481.2177997269273 2012 1545.4512707904273 2013 1658.3745042663413 2014 1625.450623772195 2015 1659.8195117636608 2016 1659.9336011914036 2017 1739.0009891654913 2018 1814.6465046180024 2019 1900.2843115272349 2020 1967.2783182431676 2021 1945.312849759805 2022 2007.2221418966483