Year	constant 2015 US$
1960	619138973.9202458
1961	774808156.2405969
1962	781884024.8023971
1963	647442448.3849787
1964	576683726.2216666
1965	562531962.5592107
1966	798432462.8890266
1967	557756648.6032869
1968	577812966.4785595
1969	633206606.3659852
1970	704836312.8769317
1971	806072964.957467
1972	963658319.4120684
1973	1110737983.6857133
1974	3121145082.123457
1975	3860363654.090838
1976	5523110385.809049
1977	4314018462.718604
1978	1640797812.345287
1979	2026643165.278796
1980	2079671053.294158
1981	3039991034.0017657
1982	2833644906.856864
1983	2703966661.2320786
1984	2845035563.4466243
1985	3118411323.123608
1986	2608022283.693676
1987	1223181298.2547417
1988	2381085355.046726
1989	1539052961.8514216
1990	1539052961.8514216
1991	1819902746.0101964
1992	1590775054.0017104
1993	1615673063.6430912
1994	1613648874.0171723
1995	1691219133.6104808
1996	1977156806.362803
1997	2560414908.144532
1998	2926473597.7679057
1999	1792150211.4378355
2000	1643933263.2412968
2001	1820330921.7261531
2002	2236688198.022603
2003	1848107148.9703407
2004	1860758786.869978
2005	1922059423.632565
2006	2082473781.340619
2007	2334736115.711651
2008	2502728538.2629085
2009	2292076216.6759334
2010	2964637353.11518
2011	3453977484.936627
2012	4209662229.5424604
2013	4291605491.448001
2014	4870447233.171432
2015	4204319943.615189
2016	4171125413.373253
2017	3688704149.9437385
2018	6705479470.383269
2019	8148181189.898662
2020	6789990075.916048
2021	7413384654.476701
2022	8027247304.141907
2023	7989715638.850665