Year	current US$
1960	27947586.009664655
1961	29787153.662966248
1962	31617281.094684303
1963	33293489.18685786
1964	34962684.33020708
1965	36644917.03590783
1966	37867006.60964067
1967	43929293.63363782
1968	56624983.61222765
1969	54800663.45707931
1970	69443087.37685193
1971	78532488.16749106
1972	96852080.92874482
1973	140899045.40176398
1974	179844203.70373097
1975	210680614.6789487
1976	226090056.52251413
1977	279051261.34258157
1978	348182772.1072212
1979	446805978.35356015
1980	551577728.4570105
1981	575687969.232902
1982	517646099.0559029
1983	530391293.48743665
1984	529778422.68747115
1985	434360524.49138457
1986	492218797.4950297
1987	607555596.0572766
1988	685829722.1681428
1989	867766216.0539106
1990	1259738151.624378
1991	1421824860.7385297
1992	1518231049.0703764
1993	1470280531.9686763
1994	1628595214.637317
1995	1865336895.837865
1996	1714248583.9437315
1997	1779792333.8217244
1998	1768318078.1281059
1999	1793748155.164081
2000	1928789838.8803952
2001	1891426419.2289257
2002	2032794377.5648758
2003	2897717610.4567766
2004	3563842826.397324
2005	3779772177.379952
2006	3304910725.005574
2007	3660210985.860429
2008	4134396159.990438
2009	4470430286.359097
2010	5405475662.845683
2011	6123051174.18491
2012	6396510383.775984
2013	6646127770.419678
2014	6545393575.34907
2015	6223841000.170599
2016	6138416267.336002
2017	6770932001.677327
2018	7403305831.63194
2019	7401705497.102186
2020	7262241509.912238
2021	8119771001.991655
2022	8246331837.312052
2023	8329500671.1547785