Year	current US$
1970	4553.443166460722
1971	4862.801956846736
1972	5308.05914620474
1973	5879.222097426112
1974	6121.83549416457
1975	6530.8890966121235
1976	7209.041869388264
1977	7948.156400624957
1978	8893.574277888492
1979	9517.841073206593
1980	10117.118073558411
1981	11452.057497582648
1982	12043.706902865357
1983	12770.516486262619
1984	14283.904766828453
1985	15165.045482616046
1986	15855.901010614494
1987	16750.110972074177
1988	18162.287251897633
1989	19138.55689432657
1990	19905.26284124572
1991	20284.23992305422
1992	21195.537028015195
1993	21893.222604874943
1994	23103.561404024305
1995	24106.773225744557
1996	25325.974712450203
1997	26804.187221024364
1998	28277.595088483835
1999	29584.421583498384
2000	31166.93814124143
2001	31888.818031455954
2002	32505.703802484404
2003	33555.3389578932
2004	35535.18689849321
2005	37454.47224692411
2006	39721.626650089966
2007	40525.819747491834
2008	40165.550978894134
2009	39149.311147282184
2010	41128.27454545721
2011	42673.67928939051
2012	44760.64515240686
2013	45715.10837195926
2014	47633.251783604064
2015	49077.96634357062
2016	49564.3519767542
2017	51472.05801242079
2018	53858.129984877625
2019	55620.40389771322
2020	53872.15309698685
2021	59006.358541650916