Year	current US$
1960	376.9764302508744
1961	400.2231620578265
1962	426.4943362982296
1963	452.28029161821337
1964	490.2073858562887
1965	544.7196198757605
1966	601.2892222618756
1967	676.3866698871183
1968	751.947085624465
1969	832.1306821072445
1970	934.0821560961167
1971	1064.5377125734099
1972	1302.2662677392957
1973	1747.9890406026593
1974	2000.4182457468232
1975	2127.6375072593028
1976	2173.283934259753
1977	2267.3710031947844
1978	2457.3132164459907
1979	2755.624617700803
1980	3368.3666694027943
1981	3245.975213677476
1982	3079.9495663427097
1983	2735.491065800466
1984	2522.7474762065804
1985	2705.1930019731712
1986	3861.9484333688047
1987	4803.86609546941
1988	5623.6969998212335
1989	6056.381027718889
1990	7884.617987563318
1991	8958.985333024697
1992	10810.566507962558
1993	9534.656363730797
1994	9977.319909057709
1995	11781.361850222052
1996	12185.091401062937
1997	11575.507112435833
1998	12199.206385024034
1999	12475.291770147596
2000	11526.372066796823
2001	11734.764974395395
2002	12936.692820448196
2003	15797.782134027593
2004	18064.15809329872
2005	18780.127512409996
2006	19839.45404990321
2007	22811.056484436518
2008	24949.041356673933
2009	23151.21541307117
2010	22520.642312404478
2011	23217.295496520746
2012	20563.713601262887
2013	21653.19597522246
2014	22103.700970332095
2015	19250.106537685195
2016	19991.972487880517
2017	21490.429863103967
2018	23562.554522819133
2019	23330.817288932005
2020	22242.406417971975
2021	24661.166487457573
2022	24515.265749571594
2023	27275.11155446915