Year	current US$
1970	1223564552.6613817
1971	1406324239.840864
1972	1670959277.3157442
1973	2180781079.8195114
1974	2421279344.572239
1975	2674963633.424923
1976	2955839359.901523
1977	3466135458.1673307
1978	3922021660.6498194
1979	4657304228.3620825
1980	5694931463.181384
1981	5720584182.970515
1982	5841865054.890835
1983	5556148590.947908
1984	6144637910.565889
1985	6650997697.620875
1986	8967863007.271873
1987	11502772893.277426
1988	15438521677.327646
1989	16547041707.080503
1990	18544549836.728348
1991	16619614762.53492
1992	14410671621.980356
1993	11215780160.299782
1994	12892430278.884462
1995	16617647058.823528
1996	16682630080.248512
1997	16806780437.521475
1998	17471072541.165997
1999	17572522072.58691
2000	15757753698.823563
2001	15517677194.488209
2002	17273740817.254932
2003	21860805738.823483
2004	24535973194.98076
2005	25834778596.108936
2006	27797702354.117607
2007	31425061439.215786
2008	34305371308.593742
2009	31635060110.546852
2010	31127827333.333393
2011	36768498005.83665
2012	35172374681.25001
2013	37633552759.21579
2014	37845001842.744965
2015	31938438069.531235
2016	33344349371.206306
2017	34561465912.94124
2018	37972411308.23527
2019	36457926360.784256
2020	36413211953.307495
2021	39570942554.26293
2022	36852490140.077965
2023	36788002511.76536