Year	current US$
1970	1491164289.92201
1971	1397213421.07401
1972	1705313794.48576
1973	2078164270.63435
1974	2306914134.20355
1975	2614904828.47618
1976	2616987740.8056
1977	2973947680.05167
1978	2691733550.92682
1979	3387331293.84782
1980	3249536596.775
1981	3328311834.6865
1982	3696503315.01527
1983	4168139797.72413
1984	4440763366.98571
1985	5275577430.60204
1986	5413231465.93044
1987	4364696738.83408
1988	4995685233.15226
1989	5567081397.18219
1990	6462804388.67287
1991	6861650302.90731
1992	6406956147.81004
1993	6657134057.71509
1994	10139196060.1065
1995	12287149079.0461
1996	14472265197.5644
1997	19353283518.41
1998	20278509647.9494
1999	19323533036.3532
2000	21420595778.5188
2001	23631986188.7826
2002	26055327118.6101
2003	29536243641.2433
2004	34908855561.5335
2005	40630443916.9827
2006	49171110627.4558
2007	63695062827.4118
2008	82749413388.5123
2009	91167760759.7377
2010	108493546394.082
2011	133912110592.406
2012	152372181924.015
2013	169917164535.727
2014	187752787044.079
2015	197057002183.224
2016	200078614800.498
2017	220067586336.324
2018	247624815977.905
2019	254894715503.291
2020	260804229509.622
2021	314544773143.122