Year	current US$
1970	2557.401694741023
1971	2912.9583572853735
1972	3439.8636908728836
1973	4848.62985068047
1974	13393.28845917074
1975	12883.175329602913
1976	15566.017283843215
1977	15923.991591968588
1978	16632.18899903486
1979	21634.620985783225
1980	28218.292527713045
1981	29371.46691355092
1982	24301.051842197707
1983	19571.808202328637
1984	19252.17255916398
1985	16818.351033826286
1986	13216.457990389012
1987	13705.465602690248
1988	14650.744240982556
1989	15197.875098178683
1990	16664.83143278864
1991	15079.359462319728
1992	16223.780076335705
1993	14724.25917534972
1994	14728.782022219188
1995	15797.69103905589
1996	17116.83255952195
1997	20519.409353557567
1998	17651.54558022249
1999	20207.225588913567
2000	27494.77133201862
2001	25836.270792673782
2002	27151.03249886602
2003	31440.220712456106
2004	40792.27647021174
2005	52468.445647505636
2006	59978.86120736001
2007	64706.98990260348
2008	79811.59773717573
2009	60733.98170022719
2010	73021.30975250354
2011	92992.99713074516
2012	98041.36223808935
2013	97630.82551520877
2014	93126.14946338216
2015	66984.91020023957
2016	58467.23557110869
2017	59407.698049888255
2018	66264.08116820903
2019	62827.39695547672
2020	52315.66008062221
2021	66858.74172475231
2022	87480.41971194625