Year	current US$
1983	19537587493.81269
1984	19903367813.22368
1985	20271299681.24764
1986	19391614315.037704
1987	17712060361.401253
1988	20334544104.16602
1989	22125746412.31425
1990	22871971961.598675
1991	22929992151.54396
1992	24992669661.858593
1993	28251352199.15901
1994	30578040032.39616
1995	34642086869.95967
1996	37907953720.70187
1997	34718566660.8888
1998	17259278072.19294
1999	27458011972.502266
2000	25873156745.547974
2001	25663357350.058033
2002	31931164039.867123
2003	35651016153.090225
2004	36819570160.34815
2005	37524883453.44845
2006	47298659468.87237
2007	59285800240.67389
2008	73889985655.68225
2009	82502594457.37762
2010	105178671354.32408
2011	120660548894.22644
2012	122755685720.59262
2013	121883103723.84154
2014	118805781442.36026
2015	116151993169.34773
2016	125605406665.30591
2017	133621208974.58008
2018	133499323857.77214
2019	142266719988.16724
2020	145073719801.1507
2021	157570493811.04068
2022	163563932040.55014
2023	171798242098.6452