Year	current US$
1975	1403779907
1976	1380182007
1977	1463044434
1978	1734471313
1979	1895898438
1980	2187928955
1981	1815784424
1982	1581557617
1983	1348032104
1984	1226743164
1985	1234490723
1986	1433077271
1987	1583675903
1988	1790329712
1989	1861106934
1990	2185527832
1991	2136283691
1992	2636531738
1993	2321499512
1994	2631302246
1995	2763616489.64043
1996	2925151760.08551
1997	2899429893.85076
1998	3253445179.28332
1999	635029159.503852
2000	648649651.96857
2001	699655911.694239
2002	745323091.173252
2003	900329952.848981
2004	1011285262.95094
2005	1135292901.67169
2006	1281555330.96262
2007	1676469544.33156
2008	1840374492.65947
2009	1524558688.72574
2010	1595954495.38239
2011	1714254523.01135
2012	2093910956.12592
2013	3035756690.39567
2014	3130366132.56346
2015	2673407398.90466
2016	2632183874.91622
2017	3004745214.02338
2018	3331709084.39561
2019	3206846641.96425
2020	3063400972.64945
2021	3949650833.18905
2022	4277248700.85229
2023	4921082958.99067