Year	current US$
2011	1429999.94754791
2012	678407.967090607
2013	1424580.57403564
2014	1581872.8208541898
2015	3378842.83065796
2016	2159619.33135986
2017	1499447.5841522198
2018	1328204.63180542
2019	2246837.37754822
2020	1076863.7657165502
2021	1773599.98226166
2022	1200929.8801422098