Year	current US$
2009	21170000.0762939
2010	24239999.7711182
2011	19069999.6948242
2012	14729999.5422363
2013	10880000.1144409
2014	9090000.15258789
2015	12220000.2670288
2016	2289999.96185303
2017	5960000.03814697
2018	5849999.90463257
2019	4869999.88555908
2020	5239999.771118159
2021	4940000.05722046
2022	3619999.8855590797