Year	current US$
2006	14580000.2608448
2007	14050000.205636
2008	14689999.829977801
2009	13839999.9365211
2010	17239999.7487664
2011	12149999.9929219
2012	16079999.9460578
2013	15999999.990686798
2014	13690000.1056492
2015	11884170.8898544
2016	15679214.7383094
2017	15351257.0001185
2018	17814353.8795412
2019	17043130.1034987
2020	12050017.5468624
2021	12847592.1489298
2022	12236923.884600403