Year	current US$
1960	315786757.09348696
1961	331867481.6501544
1962	358721230.0091557
1963	371707467.8007918
1964	378682724.03604
1965	386076096.0782105
1966	398974945.4487127
1967	425164777.21723163
1968	432533799.83173203
1969	450435160.9871426
1970	428139351.03782845
1971	444753407.0355939
1972	520904940.7111229
1973	594598555.2829632
1974	618140608.3076046
1975	857887305.8971251
1976	856232377.9920707
1977	1073247464.6957686
1978	1387619423.6657538
1979	1691370128.749099
1980	1917942313.9167442
1981	1781258979.2466903
1982	1706996433.5097423
1983	1542516310.7425296
1984	1394853573.8781934
1985	1523792976.4533026
1986	2033126912.2688708
1987	2310581040.05329
1988	2546542199.4012327
1989	2471390919.5196204
1990	2933082073.029583
1991	2873442547.62651
1992	3067299392.4734373
1993	2951975530.9899197
1994	1585596585.263753
1995	2106849411.16092
1996	2382429761.1097264
1997	2163729166.861269
1998	2556641037.481411
1999	3431946573.0432463
2000	3053348821.93248
2001	3191140196.832925
2002	3627062983.4768887
2003	4573328560.523737
2004	5353539891.088303
2005	5957345516.205686
2006	6355437012.68482
2007	7231591017.998444
2008	8917873642.97574
2009	8763443112.195086
2010	8699439682.871666
2011	10024560633.520021
2012	10474560731.043163
2013	11585217961.615618
2014	11948789012.610708
2015	10349257331.50835
2016	10942456223.604969
2017	11890172636.415577
2018	13140879548.105787
2019	13168620880.659227
2020	14184356341.325567
2021	15969497222.673931
2022	15781997468.765621
2023	17185254256.001007