Year	current US$
2012	177825.078368187
2013	105320.62500715301
2014	105570.003390312
2015	146300.002932549
2016	241659.998893738
2017	453409.999608994
2018	1413070.9171295199
2019	2397870.06378174
2020	698907.911777496
2021	367379.993200302
2022	328788.191080093