Year	current US$
1981	33527872562.214424
1982	32025514826.900158
1983	25959049174.003555
1984	24353585800.19282
1985	24942909603.009182
1986	24610466178.409218
1987	27593631494.255974
1988	29082428101.829
1989	26383046648.353233
1990	30011002704.90042
1991	31536446327.96061
1992	30091461753.114803
1993	31225628324.953148
1994	33883351879.54715
1995	52952211582.33261
1996	67150570920.578285
1997	72801629543.9023
1998	80114739788.70833
1999	33056842329.013954
2000	29580881294.691345
2001	34163722399.6747
2002	53164699889.34371
2003	57163257966.2792
2004	61229378830.21233
2005	72783022429.05045
2006	88999765277.18988
2007	103356467462.1787
2008	129130492567.65141
2009	120853589896.4676
2010	132823677986.77911
2011	140566275404.7445
2012	150864759682.28195
2013	163519333569.0842
2014	171972326462.83417
2015	155736061546.49023
2016	142084583261.9472
2017	139782444506.877
2018	157204125285.59518
2019	170040789605.44086
2020	175852618478.22894
2021	182461651910.4509
2022	191798256843.42343
2023	169694288707.05753