Year	current US$
1962	2182.2134552958582
1963	2366.567789108146
1964	2603.06203482263
1965	2887.1127759767896
1966	3143.8728496865238
1967	3339.4043446903715
1968	3506.3277361022083
1969	3820.8701631661943
1970	2194.1189616759266
1971	2429.0163096835167
1972	2845.5240195865445
1973	3652.090339151581
1974	4526.926011001251
1975	5226.464944147345
1976	5545.544079480773
1977	5954.508593131097
1978	6764.2188029401495
1979	8388.821377085216
1980	10064.87119329833
1981	9964.940660494478
1982	9026.228366875825
1983	8046.082802420545
1984	7821.869478201355
1985	7831.14855569619
1986	9036.473540699651
1987	11545.339601407115
1988	15004.525875435831
1989	16091.506139408062
1990	17351.9480914908
1991	18569.18845307408
1992	20852.202991526847
1993	20537.04181948004
1994	21076.555702601774
1995	22220.8233708515
1996	23493.43342550282
1997	23489.36307742738
1998	22475.06326120764
1999	22067.807670546266
2000	21868.408595938614
2001	20989.812499685344
2002	20496.359539502817
2003	23094.480575621266
2004	28074.26573060238
2005	32154.967719168446
2006	34254.7043706133
2007	36409.028740000234
2008	39229.64292369632
2009	39355.953831675324
2010	39524.644456962946
2011	40005.73934189393
2012	38918.50915658748
2013	39128.64465143139
2014	39051.61705669712
2015	37417.62106227145
2016	36052.012247513565
2017	35576.38566160568
2018	38544.16609587784
2019	39991.448019038464
2020	37899.901501329645
2021	42019.064041516656
2022	43978.703341206456
2023	44016.66044340828