Year constant 2015 US$ 2015 83118677957.88942 2016 87194728099.97482 2017 92869072546.00595 2018 94943951714.36935 2019 94508787851.24686 2020 90185525520.5169 2021 94469106459.23694 2022 87249237953.79503 2023 84702777537.1845