Year	current US$
1970	105.77218279481218
1971	111.95250590225888
1972	113.3696405952433
1973	125.5402471744525
1974	147.43184466646312
1975	152.26480873644232
1976	145.20602393250326
1977	162.8640189634688
1978	182.09981506864108
1979	198.66944160275855
1980	237.62075169812368
1981	244.4975217964862
1982	245.116775558673
1983	254.15892920070587
1984	246.13615961880188
1985	259.6767438437937
1986	269.7994802107521
1987	291.6256406715833
1988	306.3361736422591
1989	300.30634657856695
1990	314.6023436057735
1991	273.1835163733213
1992	283.9692225141344
1993	276.8049349968954
1994	308.26861590634746
1995	334.8962558586201
1996	359.99161259030143
1997	369.84065564102946
1998	368.72966510244765
1999	386.9367199212728
2000	396.42506058980564
2001	399.19123609755763
2002	411.36732443290055
2003	472.623032264882
2004	535.9777980421209
2005	601.4646042800161
2006	673.0002367811882
2007	833.2700428609744
2008	825.4618040498755
2009	910.5625788288436
2010	1091.1343561765098
2011	1184.7704333943277
2012	1183.4840587148828
2013	1200.2661008543485
2014	1301.0724337555318
2015	1354.6570486516719
2016	1481.9063178487806
2017	1680.4588837687704
2018	1706.2718257461333
2019	1759.250524363077
2020	1642.427587283621
2021	1886.566788713238