Year	current US$
1960	83000000
1961	82000000
1962	80000000
1963	85000000
1964	97000000
1965	98000000
1966	109000000
1967	112000000
1968	123000000
1969	148000000
1970	161000000
1971	161000000
1972	176000000
1973	239000000
1974	361000000
1975	375000000
1976	423000000
1977	516000000
1978	575000000
1979	759000000
1980	938000000
1981	860000000
1982	789000000
1983	733000000
1984	717000000
1985	759000000
1986	887000000
1987	1139000000
1988	1353000000
1989	1479000000
1990	1964000000
1991	2130000000
1992	2331000000
1993	2174000000
1994	2447000000
1995	2890000000
1996	2801000000
1997	2552000000
1998	2668000000
1999	2843000000
2000	3413000000
2001	2531000000
2002	2646000000
2003	3227000000
2004	3641000000
2005	3681000000
2006	4307000000
2007	4801000000
2008	5300000000
2009	4478000000
2010	5062000000
2011	6293000000
2012	6598000000
2013	6142000000
2014	6798000000
2015	6036000000
2016	6444000000
2017	5997000000
2018	6769000000
2019	7388000000
2020	5718000000
2021	7133000000
2022	8519000000
2023	8105000000