Year	current US$
2006	22270000.4577637
2007	11689999.5803833
2008	9119999.88555908
2009	7380000.11444092
2010	6050000.19073486
2011	6449999.80926514
2012	7880000.11444092
2013	6420000.07629395
2014	3650000.09536743
2015	1769999.98092651
2016	2859999.89509583
2017	1850000.02384186
2018	2289999.96185303
2019	1700000.04768372
2020	2359999.89509583
2021	5239999.771118159
2022	3470000.02861023