Year	current US$
2013	3911141258.48943
2014	3122554694.7181253
2015	2980599355.731736
2016	2847423770.9668527
2017	4306024611.6103325
2018	4188947845.218066
2019	4763668896.753901
2020	3414846866.718058
2021	4096786536.199999
2022	6290162303.835788
2023	7114908351.292193