Year	current US$
1970	4210936226.514951
1971	4828104967.507435
1972	5940800642.895411
1973	7945377046.876098
1974	10245142815.076561
1975	11254488425.377262
1976	12352078699.087212
1977	14409079177.420696
1978	18066572538.614613
1979	22832410705.09521
1980	26006990002.127205
1981	23441765163.297047
1982	22623842865.209324
1983	21981186609.468365
1984	22265892304.51826
1985	24230778797.55254
1986	31689309598.918434
1987	38996595559.42534
1988	44096573052.49081
1989	46607267810.712425
1990	59423124773.08483
1991	60116254566.88273
1992	64678675181.56775
1993	59900881343.90157
1994	65453950126.49079
1995	80827705745.87143
1996	81256732518.84586
1997	78792186266.7719
1998	83704902178.74611
1999	85506764813.72606
2000	85517701539.37273
2001	88123586542.16547
2002	97162437618.48253
2003	116896445115.8978
2004	141284763656.0467
2005	153683280004.98047
2006	170970396756.21155
2007	204559320050.00458
2008	230062733001.00775
2009	181624745272.72644
2010	201088694407.16705
2011	232888437032.78256
2012	220969210537.8282
2013	229899623200.70654
2014	236280892259.34427
2015	202784894360.50772
2016	207444081442.6581
2017	225534464183.70627
2018	252348201943.93707
2019	247910305740.15646
2020	224419959324.06287
2021	268174561561.77863
2022	292375700457.14124
2023	306922587166.77014