Year	current US$
2011	2210888603.3519554
2012	2271569162.0111732
2013	2211369385.47486
2014	2204643351.955307
2015	2191323407.821229
2016	2137653631.2849162
2017	2192435139.6648045
2018	2239802458.1005588
2019	2236437541.8994412
2020	1903007932.9608939
2021	2042657988.8268156
2022	2256539608.9385476