Year	current US$
1970	60940000.37014481
1971	85390003.26395033
1972	62760000.69081784
1973	35230000.7138401
1974	120320000.8571148
1975	91230001.7029047
1976	33619999.3342161
1977	83380002.08884476
1978	126499997.46680254
1979	174520002.61843196
1980	107870001.9679963
1981	127599997.53721067
1982	115360001.9793958
1983	113650000.16055998
1984	134019998.39022756
1985	166649995.92863017
1986	207549998.93531203
1987	238790002.63661137
1988	254650001.26138327
1989	212070004.75749364
1990	401490003.66032195
1991	287239999.1713465
1992	307149999.0243463
1993	231049997.2328544
1994	239350002.8420239
1995	240280000.29176474
1996	221479999.02628368
1997	172290003.27363616
1998	129299998.40445809
1999	209579999.97399747
2000	131089998.66247182
2001	144899998.19733196
2002	248339999.82662508
2003	429750012.26738054
2004	326439996.27418786
2005	1552239986.8313248
2006	2079730035.9476385
2007	953180022.7947533
2008	374119996.32418114
2009	411759997.78509134
2010	429090007.0592764
2011	587130006.3300877
2012	504139987.8356608
2013	426780002.988875
2014	409070000.66712433
2015	302520001.2680142
2016	384220005.8847665
2017	644310012.9272798
2018	580780000.3401936
2019	437510004.3471904
2020	493130009.641871
2021	594710006.8032745
2022	438920002.0097195