Year	current US$
1960	12289249.612699237
1961	13480894.25486743
1962	9015423.785163885
1963	7155669.378163256
1964	5693926.189022388
1965	3303095.6292690863
1966	-1730374.0824433852
1967	-861355.6587333013
1968	8591145.472463856
1969	9948581.664541177
1970	7698910.812289369
1971	800259.425185733
1972	3889505.7326393826
1973	14060896.35134963
1974	16934853.544261135
1975	2824942.408973048
1976	-9673499.565981228
1977	-6382485.744537765
1978	-18170629.382281497
1979	-5732199.493531556
1980	-89219784.18593319
1981	-159474261.1559215
1982	67054756.563016474
1983	-5388241.160385125
1984	15007732.368591443
1985	-42414171.36359847
1986	-33070230.301358074
1987	-43062271.73783934
1988	-42873694.33624178
1989	7626116.961928943
1990	131372169.94802868
1991	102069132.94704151
1992	56939860.744977005
1993	127491333.16800311
1994	160699100.42691714
1995	268111936.90912315
1996	331288240.3862298
1997	321769839.5865117
1998	312960752.42760307
1999	362383502.1652579
2000	347453986.848137
2001	338491934.0536481
2002	441182181.6106153
2003	579653954.0080663
2004	764047844.5522017
2005	653967307.1055678
2006	648166679.2282634
2007	927087666.8576032
2008	1002900584.038287
2009	975714873.8607811
2010	984174534.9504478
2011	1170367021.7173216
2012	1374068462.7442625
2013	1852992650.992583
2014	2238575274.011628
2015	1527887562.197729
2016	1950320703.5930636
2017	2145946637.8372421
2018	2729793498.6561747
2019	3052200632.1506705
2020	3222927551.8982377
2021	4003305248.868309
2022	5035718130.350957
2023	6198561720.728453