Year	current US$
2002	5000000
2003	6199999.80926514
2004	9600000.38146973
2005	9100000.38146973
2006	11199999.8092651
2007	16500000
2008	23700000.762939498
2009	19500000
2010	141500000
2011	184100006.10351598
2012	286600006.10351604
2013	233300003.05175802
2014	220199996.94824198
2015	146000000
2016	149600006.10351598
2017	171600006.10351598
2018	170899993.89648402
2019	179100006.10351598
2020	102400001.52587901