Year	constant 2015 US$
2009	2911398601.224641
2010	2948305135.048636
2011	2845245063.1277647
2012	2984804555.140747
2013	1796647108.2839231
2014	1936401633.6200008
2015	2018197549.2643247
2016	2325177268.251277
2017	2189806759.6558876
2018	2801436678.3689733
2019	2900749407.064862
2020	2866271274.519958
2021	2864265271.339948
2022	2952995545.091697
2023	2828374710.397301