Year	current US$
1970	36959999.67865646
1971	37739999.79905785
1972	47160001.45487489
1973	41899999.832734436
1974	43870000.14632937
1975	44909999.77104366
1976	49140000.22038819
1977	47479998.961091086
1978	79260000.49337748
1979	57929999.58060682
1980	69150000.53122638
1981	76269999.16508792
1982	97419998.24531372
1983	104219998.95013869
1984	124120001.21176249
1985	99219999.44932756
1986	121829998.92346567
1987	163139997.8268892
1988	240279997.85169956
1989	207710002.43537125
1990	224529999.09780923
1991	285890003.55452305
1992	397699997.0078466
1993	199750002.771616
1994	176869998.77542245
1995	311679996.933788
1996	252269995.20696655
1997	247179997.60247764
1998	248880000.94704363
1999	264190001.8751617
2000	236090002.22757477
2001	238690001.2921543
2002	186079997.21169487
2003	218400001.73822042
2004	210940001.34058285
2005	195229998.94618988
2006	195539998.76230943
2007	203400000.05066404
2008	219189999.75174662
2009	172200000.63441697
2010	103900000.44740736
2011	107060001.67503953
2012	92710000.59135257
2013	116460001.33641058
2014	116549998.8924712
2015	141960002.48752537
2016	96450003.06330627
2017	140900004.0534884
2018	136639999.17358157
2019	133030001.3460219
2020	144829997.03660604
2021	141130003.12261286
2022	162860003.77684835