Year	current US$
1965	585845347.3132372
1966	641700841.787179
1967	698363555.9486953
1968	820327102.8037384
1969	860290556.9007264
1970	998241647.8271791
1971	1016832440.703902
1972	1001034126.163392
1973	1189742294.0879233
1974	503428215.2503636
1975	537702761.9465147
1976	1073286991.0625622
1977	1420803367.8302052
1978	1147362037.5985446
1979	781000142.8571429
1980	1997514061.388889
1981	1198108108.108108
1982	1145320197.044335
1983	1383003492.4330618
1984	1634057192.00172
1985	1740131923.3588107
1986	2494855004.6772685
1987	1700706127.2584448
1988	1686541396.9335606
1989	1977487660.0578272
1990	1913414087.0345445
1991	827185111.3326687
1992	2420184756.1159086
1993	2713085234.0936375
1994	3568505338.078292
1995	3830728398.7024474
1996	4485554245.283019
1997	5566961651.917404
1998	6092857142.857143
1999	7379032733.706871
2000	7172464406.282108
2001	7050134770.889488
2002	5468808988.764045
2003	5169346153.846153
2004	4704155844.155844
2005	5322628951.747088
2006	6357547826.086957
2007	6026865148.861647
2008	7308763636.363636
2009	8737731397.459166
2010	10165226860.254084
2011	10532581755.593805
2012	-6407672966.666667
2013	-9985726744.186047
2014	-10845674045.911047
2015	-3935303490.5660377
2016	4293310257.6687117
2017	3595798254.076087
2018	5770726291.502533
2019	8654322579.726652
2020	17028551095.4068
2021	20800960817.30338
2022	23427216576.964317
2023	19861396041.575085