Year constant 2021 international $ 2012 12304440419635.176 2013 12532251626538.723 2014 12623111059565.594 2015 12577089330441.523 2016 12441477867659.885 2017 12813500736918.781 2018 13274128644898.67 2019 13619476977622.748 2020 13358904512036.314 2021 13990132532060.215 2022 13866261495081.078 2023 14322428730337.56