Year	constant 2015 US$
1970	418.54108263889304
1971	415.91019047314114
1972	407.1803203349988
1973	399.7847673971095
1974	406.78712674792894
1975	380.57431436469653
1976	401.1588059348553
1977	418.7467698696748
1978	433.9633688915754
1979	440.0609075317466
1980	447.41997411072396
1981	498.99714314540705
1982	500.3335328122737
1983	535.7647396142842
1984	543.3401517256827
1985	548.4735528176153
1986	593.0583112606946
1987	743.2190198419763
1988	756.5374245008945
1989	789.5630350413767
1990	849.3312640752314
1991	832.0580693448215
1992	905.0393628550621
1993	967.5090210198964
1994	1014.5932089282154
1995	1073.4424153060063
1996	1112.1872112637157
1997	1151.871915191417
1998	1197.4879075928216
1999	1261.7363362217784
2000	1268.0537620998632
2001	1324.8223041494746
2002	1425.8058041410764
2003	1499.1005789368319
2004	1539.1509823313654
2005	1612.8117355750444
2006	1678.6402079849427
2007	1925.094466528758
2008	1988.591981131029
2009	2116.697405241321
2010	2342.9375517771123
2011	2509.7797251017832
2012	2609.084821301976
2013	2624.175680210084
2014	2746.086854161056
2015	2899.2282935439384
2016	3115.5879120608474
2017	3197.7437471188055
2018	3283.7756674948528
2019	3448.494190080897
2020	3075.885565267408
2021	3191.308828685038
2022	3336.376299156791