Year	current US$
1970	118138249.007107
1971	155034983.289578
1972	201675782.191561
1973	292813310.239857
1974	482453523.275972
1975	569226292.696117
1976	722777071.726246
1977	803545483.48752
1978	937066447.177439
1979	1152557454.37004
1980	1608114951.7105
1981	2005631965.66565
1982	2368582526.0362
1983	2579355308.3057
1984	2801262147.97107
1985	2967254627.14532
1986	3123055930.41635
1987	3539618071.79493
1988	3977428016.85401
1989	4552487904.61924
1990	5190862688.83601
1991	6523295556.36807
1992	7593280069.75725
1993	8820344770.78967
1994	9905716135.52027
1995	11195118758.6607
1996	12233451391.0112
1997	12468146382.5107
1998	12485789874.9104
1999	13156630970.0396
2000	13797496295.5018
2001	14372798632.0754
2002	15361119183.087
2003	16645448214.4758
2004	18917796699.3679
2005	20160121467.7886
2006	21656510113.2405
2007	24934076011.0014
2008	29411921794.3042
2009	31100843713.4118
2010	32655619504.5131
2011	37790646682.9982
2012	40900353271.3403
2013	43888298545.2834
2014	45141045243.1317
2015	47468714540.8333
2016	49607984715.6947
2017	52308114584.0328
2018	60482756398.4798
2019	64932135270.202
2020	66740313524.3194
2021	72711987073.3631