Year	current US$
1975	2506303955
1976	2526193604
1977	2768169189
1978	3671261963
1979	4372491699
1980	5070108398
1981	4668909668
1982	4341056641
1983	4114147949
1984	3839024902
1985	4172761719
1986	5141358398
1987	5759801270
1988	6387636230
1989	5568719727
1990	6773122236.62455
1991	6891364594.1767
1992	7978348004.09654
1993	7284907934.78524
1994	4148438984.00125
1995	4794655248.89311
1996	4319043066.44148
1997	3991027127.068
1998	4236760893.19551
1999	4816444915.83566
2000	5120657542.46751
2001	5384609627.45087
2002	6134107943.23151
2003	7721669639.81457
2004	9094683582.68995
2005	9470052385.13178
2006	10285441104.4263
2007	11945214337.7971
2008	13269362770.0897
2009	11766845174.6334
2010	12026060391.5078
2011	12857522696.0118
2012	12561160242.5309
2013	13424774110.1757
2014	13729849894.4832
2015	12791549840.9182
2016	13284455662.4701
2017	13798960222.9361
2018	15022558189.9314
2019	15041212238.8391
2020	14833738032.048
2021	16682762780.368
2022	15267430312.6556
2023	15866272770.6504