Year	current US$
1960	10500000
1961	13400000
1962	12100000
1963	14000000
1964	19300000
1965	23600000
1966	28500000
1967	27150000
1968	32799999.999999996
1969	38260000
1970	38540000
1971	45110000
1972	67160000
1973	98470000
1974	133949999.99999999
1975	166010000
1976	228910000
1977	288680000
1978	342470000
1979	424290000
1980	485710000
1981	449560000
1982	410940000
1983	363340000
1984	394450000
1985	399320000
1986	498350000
1987	604640000
1988	697690000
1989	844098693.8
1990	1126532785
1991	1290946404
1992	1539251264
1993	1354117717
1994	1556625242
1995	1913384751
1996	1740473316
1997	1643839758
1998	1844710986
1999	1983841366
2000	2440384205
2001	1822409168
2002	2024196844
2003	2255896001
2004	2516748427
2005	2393037460
2006	2802364064
2007	3442673288
2008	3472203632
2009	2867589321
2010	3580828365
2011	4373443380
2012	4255425024
2013	3652402592
2014	2928961750
2015	2607105543
2016	3185886425
2017	2858395049
2018	3192225757
2019	3177729712
2020	2680285099