Year	constant 2015 US$
1982	36750303883.75636
1983	37822828517.607285
1984	40534966049.27374
1985	42628505559.05108
1986	44403703517.54942
1987	45571528407.33035
1988	44873819858.048134
1989	43413664010.87894
1990	38001253786.65184
1991	30576988643.979443
1992	23820445728.697357
1993	21680818464.981792
1994	20940815944.70833
1995	23383362573.30487
1996	23628926121.32817
1997	21005216937.06762
1998	19835938936.62386
1999	22662130023.850792
2000	21844334678.929443
2001	21126724165.67364
2002	22230001056.76635
2003	22455730952.526447
2004	23631333865.39293
2005	24631749202.201035
2006	25199268629.15918
2007	26682596096.11333
2008	27593253602.64858
2009	28160953534.29037
2010	28735366379.434486
2011	30061695119.08858
2012	31286887781.915047
2013	32951362841.4526
2014	34636650043.88174
2015	37734766721.707245
2016	40090334661.37942
2017	42740186718.13625
2018	45078287115.81864
2019	47840356978.16452
2020	47600031371.30929
2021	48726888366.02498
2022	49706374887.09388
2023	51514837423.77652