Year	current US$
2010	16154828635.27828
2011	17696909556.34759
2012	17253873275.648167
2013	18522628159.78085
2014	20771282060.733875
2015	21690486318.3396
2016	23683750000.977264
2017	25600455175.920933
2018	27847500647.423576
2019	29904331560.572876
2020	30397239058.361168
2021	32059028923.026817
2022	35069330401.24145
2023	36020655889.8123