Year	current US$
1960	5300000
1961	8100000
1962	7500000
1963	8700000
1964	10100000
1965	13030000
1966	21120000
1967	25980000
1968	28730000
1969	54270000
1970	59130000
1971	74390000
1972	95610000
1973	131630000
1974	168160000
1975	205310000
1976	214410000
1977	257890000
1978	387620000
1979	460680000
1980	480600000
1981	403300000
1982	414950000
1983	394980000
1984	448770000
1985	439540000
1986	695020000
1987	859250000
1988	921660000
1989	937070000
1990	1171160000
1991	1200210000
1992	1391610000
1993	1339930000
1994	1446010000
1995	1622670000
1996	1772410000
1997	1636610000
1998	1704260000
1999	1733310000
2000	1664180000
2001	1634420000
2002	1643240000
2003	1748160000
2004	2037130000
2005	2108920000
2006	2236120000
2007	2562230000
2008	2803280000
2009	2809880000
2010	2871240000
2011	2931130000
2012	2692590000
2013	2927460000
2014	3003270000
2015	2565570000
2016	2369190000
2017	2448020000
2018	2576830000
2019	2541370000
2020	2640860000
2021	2913740000
2022	2764330000