Year constant 2015 US$ 2010 2316681577.7047296 2011 2654897140.9412923 2012 2798600870.4559913 2013 2495998559.315704 2014 3161043722.5146837 2015 3641552617.454751 2016 3884813360.261713 2017 3998672447.5661683 2018 4074029273.4372125 2019 4062053351.868514 2020 3531261574.461961 2021 3363172924.832285 2022 3695742533.328073 2023 4620799593.653457