Year	current US$
1970	37320000.97632404
1971	33260000.616312042
1972	30099999.75562093
1973	29349999.368190758
1974	14230000.257492067
1975	7999999.970197678
1976	8309999.942779535
1977	8020000.249147413
1978	8050000.011920926
1979	1680000.0853836453
1980	1509999.9308586163
1981	1569999.992847437
1982	-789999.9804794809
1983	-889999.9856948897
1984	-1499999.940395355
1985	-899999.976158146
1986	30000.060796739766
1987	520000.0405311596
1988	-420000.0464916341
1989	489999.9499321014
1990	2279999.96207654
1991	-2520000.8470565006
1992	-52789998.11597165
1993	27309999.76396561
1994	27709999.978542335
1995	32610000.16331672
1996	40380000.07718803
1997	47210000.82045792
1998	48470000.32663345
1999	35759999.677538835
2000	35650000.28163193
2001	36569999.76933002
2002	37309999.9651313
2003	29389999.255538
2004	31409999.638795838
2005	30720000.01370904
2006	15289999.820291996
2007	16780000.040307645
2008	15490000.192075964
2009	15869999.53724444
2010	12410000.219941134
2011	6510000.012814997
2012	11590000.04269182
2013	9600000.170990817
2014	25429999.58991999
2015	53899998.30722808
2016	51709999.79972839
2017	31660000.750794996
2018	48919999.361038186
2019	50559999.52554698
2020	42550001.14440917
2021	55300000.30994417
2022	428189994.0371509