Year	current US$
2011	27880000.039935097
2012	13251997.70461768
2013	25211551.371961836
2014	22167736.142873757
2015	28536570.981144905
2016	29111886.605620384
2017	29435556.34282529
2018	28573762.327432636
2019	30036589.462310065
2020	21069417.394697677
2021	38007700.19739867
2022	23517497.390508655