Year	constant 2015 US$
2010	21884832.99700786
2011	22882044.394962076
2012	20558383.550205275
2013	22398739.823255166
2014	14846314.452717278
2015	15165000
2016	21988247.512351263
2017	20903450.35140213
2018	18018396.423352584
2019	18247385.707327258
2020	18484816.992554452
2021	23063547.42189131
2022	17019074.52508524