Year	current US$
1970	375695454.54545456
1971	478709090.90909094
1972	602091547.6999773
1973	787036502.8292466
1974	1091995997.9989994
1975	1006859466.4931686
1976	1157480375.4734588
1977	1530486247.2972295
1978	1774046328.0587215
1979	2058805445.263755
1980	2414043480.07337
1981	2553121729.7417016
1982	2406511354.8961663
1983	2079612765.0667396
1984	2155169923.3601627
1985	2309065570.966351
1986	3034791383.8488526
1987	4340825395.840444
1988	4785366857.302274
1989	4383317093.780351
1990	5047646653.100862
1991	5492436407.028915
1992	5682132732.305863
1993	4865413412.382846
1994	4931373733.99443
1995	5581983685.696929
1996	5847948902.255639
1997	5886384704.453749
1998	6673974207.386593
1999	7270608264.567922
2000	7396292294.189478
2001	6419265883.565342
2002	7323440346.404223
2003	9333532153.984539
2004	11166297083.558313
2005	13964880751.075314
2006	14086271459.105156
2007	17195520084.30255
2008	13748618761.78965
2009	10080496771.22965
2010	10484545740.646284
2011	11680231174.149498
2012	11538262365.717272
2013	12387977550.028156
2014	13651561868.76651
2015	12807031664.33859
2016	15029522434.556414
2017	18242804760.998116
2018	19546993617.133026
2019	18452416212.710873
2020	17310320300.91733
2021	20345080031.730904
2022	21780900587.65671
2023	23470635287.75578