Year constant 2015 US$ 2015 9434.954432722394 2016 9743.945710829823 2017 10165.50166233913 2018 10450.14533059372 2019 10839.469986729864 2020 10178.302190417517 2021 10356.61176318389 2022 11056.514215364707 2023 11379.383615020715