Year	constant 2015 US$
1975	469747337.6338801
1976	522253144.7749089
1977	573622299.5834738
1978	656890947.5629288
1979	737757958.1468233
1980	785222180.2790742
1981	822988230.7728258
1982	818643298.2543011
1983	813326718.2678744
1984	898502002.1575642
1985	966994221.4637864
1986	986225572.9773854
1987	1119140061.264532
1988	1400680467.7676046
1989	1719088608.4488256
1990	1899080130.853404
1991	1792269235.1107647
1992	1545779995.9737782
1993	1503026152.2092426
1994	1579975458.4724567
1995	1787358502.152641
1996	1699149866.5073967
1997	2292007765.794059
1998	2634833840.1614065
1999	2540352181.4673624
2000	2491159898.6862974
2001	2453135379.52322
2002	2502224620.048819
2003	2319556896.7085657
2004	2728207219.511341
2005	2593551618.7431207
2006	2594696848.654662
2007	3435476222.649261
2008	4798829959.983254
2009	4387377709.521425
2010	4870870035.758005
2011	5411867435.915868
2012	6778849875.160512
2013	7748744200.193346
2014	7646483958.964673
2015	8092740027.832976
2016	6399606805.328177
2017	5570928984.090277
2018	6457637837.004706
2019	7204927801.94429
2020	7561634633.268675
2021	7738816423.937904
2022	6830381375.876149
2023	6155288864.041932