Year constant 2015 US$ 2013 41621176.21912395 2014 63582216.02752652 2015 66320645.281086646 2016 71366775.84310418 2017 81924252.70245668 2018 92697057.23512119 2019 105537459.41565804 2020 125263293.93677825 2021 154239218.5408416