Year	current US$
2010	5300675.54388674
2011	9623377.31847122
2012	14976011.1087776
2013	13273529.2465496
2014	13878244.6324538
2015	12483955.270449
2016	13883152.2205979
2017	15201613.9107336
2018	17458333.6995543
2019	16568214.128682
2020	16846964.257811
2021	19607480.2789456