Year	current US$
1960	383200006.864965
1961	464199994.266033
1962	403000006.67572
1963	311099994.659424
1964	266499995.23162803
1965	199200006.00814798
1966	156499995.708466
1967	143199999.332428
1968	146099997.282028
1969	168800000.25033998
1970	173299996.994436
1971	169699997.544289
1972	179369995.713234
1973	185809996.88804102
1974	202289998.978376
1975	296819997.96629
1976	276370003.402233
1977	256539993.88217896
1978	305060000.568628
1979	336369996.681809
1980	392400000.046939
1981	352409991.145134
1982	314620000.123978
1983	316439999.878407
1984	314569997.668266
1985	392609997.987747
1986	411869993.219152
1987	536220004.43935406
1988	451140001.475811
1989	442830006.480217
1990	697360001.564026
1991	820989997.327328
1992	934780017.197132
1993	877559989.541769
1994	1014379992.4850501
1995	1088229998.23093
1996	1068900006.6518799
1997	801270011.782646
1998	858660001.87397
1999	800059998.065233
2000	672270002.126694
2001	620309993.386269
2002	557389996.647835
2003	729899997.472763
2004	861269990.205765
2005	1527269976.4967
2006	1758640011.549
2007	1668139986.63425
2008	1449930037.73689
2009	1000899999.14169
2010	859669998.884201
2011	1299129960.06012
2012	1358349991.55998
2013	1212349985.5995202
2014	957780019.283295
2015	631410000.562668
2016	1096800015.62834
2017	1457749981.1649299
2018	864910009.205341
2019	759549998.1045719
2020	1067809998.03543
2021	993589985.966682
2022	1292579985.1417534