Year	current US$
2012	22726922.484580424
2013	30328572.14845719
2014	24787250.04568696
2015	30756240.08104206
2016	29866559.92455781
2017	32393680.153880272
2018	42653999.762609616
2019	74619289.6857392
2020	52841220.499947675
2021	48788730.26929799
2022	48323255.764320485