Year	current US$
1980	5000000
1981	5000000
1982	4000000
1983	4000000
1984	7400000
1985	8400000
1986	11200000
1987	14200000
1988	18500000
1989	18100000
1990	25400000
1991	41620000
1992	37620000
1993	49620000
1994	59480000
1995	65489999.99999999
1996	82300000
1997	94510000
1998	111790000
1999	118660000
2000	122970000
2001	138940000
2002	146760000
2003	193830000
2004	235590000
2005	256390000
2006	290710000
2007	375530000
2008	414940000
2009	414730000
2010	402690000
2011	409240000
2012	399030000
2013	429323000
2014	423220000
2015	362880000
2016	391040000
2017	424180000
2018	473360000
2019	471570000
2020	452340000
2021	539370000
2022	530120000