Year	current US$
1970	4989999.955520038
1971	4969999.855384238
1972	3240000.024437906
1973	5690000.096336003
1974	8700000.14081598
1975	7560000.190511354
1976	19120000.31396749
1977	14039999.485015843
1978	35159998.76707795
1979	28650000.117719185
1980	18359999.945387296
1981	4650000.065565114
1982	18839999.632909894
1983	16360000.196844343
1984	5970000.088214883
1985	17559999.45104123
1986	46109999.07925731
1987	33210000.421851844
1988	28759999.364614464
1989	31180000.02205378
1990	43549999.85545875
1991	44299999.71948561
1992	75399999.71538782
1993	26169999.914243817
1994	48880000.531673506
1995	77279999.67336659
1996	134320001.1439622
1997	149360001.3349205
1998	136009999.02375033
1999	154559998.31296507
2000	119489999.8176843
2001	169110000.98660588
2002	165959998.34127727
2003	153440000.7277726
2004	168810000.62450758
2005	142039999.5129556
2006	145469999.25747514
2007	89040001.46687031
2008	127049997.10619447
2009	137930000.86210662
2010	86970000.87983903
2011	98529998.6284227
2012	31760004.24101953
2013	57389999.88138673
2014	50629999.42898754
2015	35300000.22426249
2016	17509999.804198667
2017	23489999.38555062
2018	39360000.099986814
2019	18050000.56512654
2020	20439999.902620904
2021	41130000.15169378
2022	43639999.33749437