Year constant 2015 US$ 2013 1654223713.1289177 2014 1810784454.925826 2015 1975073574.872975 2016 2264443760.4215384 2017 2461701025.7161484 2018 2480887560.598597 2019 2573232136.8589187 2020 2784088878.003622 2021 2976530664.3716016 2022 2868993533.6651473 2023 3013855163.1591544