Year	current US$
2012	23158768.637571502
2013	28910711.4542276
2014	25869310.125708602
2015	33510700.0116259
2016	30918969.973921802
2017	32538670.046720702
2018	42886684.1997951
2019	71033139.7994887
2020	52966329.7329098
2021	51986120.0619489
2022	46802536.45405174