Year	current US$
1965	610052364.7722652
1966	633348196.1219088
1967	695932322.4206568
1968	794135873.8334473
1969	827817860.180598
1970	811134062.85255
1971	931519855.0074314
1972	1127658091.229816
1973	1366149810.4194674
1974	1493946917.9716947
1975	2056805659.8552861
1976	2213429187.135307
1977	2187400963.6783686
1978	2958487440.1223173
1979	4108185698.3015795
1980	4575786012.991177
1981	4728013761.807692
1982	4072503056.416276
1983	4352080408.971426
1984	4519876148.084671
1985	5497226003.916107
1986	7428634622.411751
1987	8723963230.137703
1988	8357444486.851205
1989	7616416318.059486
1990	8197534692.95486
1991	7659862193.591297
1992	8528786956.268434
1993	10671622756.692013
1994	5872104517.1058855
1995	7071828184.628995
1996	7510090277.354366
1997	7189544434.070459
1998	7832461898.940807
1999	8055259682.623173
2000	7420895433.2358675
2001	7733665130.738882
2002	8928905186.633549
2003	11511468135.253065
2004	13343897767.853237
2005	13880418779.36737
2006	14856752989.781057
2007	16943446621.59414
2008	19986092948.924232
2009	20444398704.508957
2010	20041774188.02138
2011	22138646450.341427
2012	21718843700.130756
2013	24109342497.825752
2014	26134879847.27036
2015	23532186346.23407
2016	23939290549.064114
2017	25763988812.008713
2018	28630968996.93221
2019	28817568699.11609
2020	29896904807.475296
2021	33084793731.20342
2022	32289091404.447754
2023	35144058896.062