Year including construction (constant 2015 US$) 2013 30474.14121939429 2014 31234.0106187561 2015 32165.156621659888 2016 32425.780809515818 2017 35573.99082580548 2018 40979.118933137506 2019 44841.37049923993 2020 44212.3389938671 2021 46972.913566228846 2022 47449.862757801406