Year	current US$
1993	10200000
1994	7400000
1995	7000000
1996	8900000
1997	7600000
1998	18500000
1999	17800000
2000	19300000
2001	21700000
2002	22500000
2003	22900000
2004	23900000
2005	24700000
2006	26600000
2007	28200000
2008	34500000
2009	26900000
2010	534000000
2011	565500000
2012	565200000
2013	531100000
2014	574800000
2015	585000000
2016	617100000
2017	651400000
2018	622700000
2019	741100000
2020	837300000
2021	871800000
2022	954500000