Year	current US$
1970	9002416.19390046
1971	16959832.714869693
1972	7539055.440820121
1973	11216632.310524462
1974	28251132.35668327
1975	10265634.343485575
1976	7533139.2603171915
1978	9749615.563581573
1979	28206618.782781668
2007	15903977.099897364
2008	102449037.83135474
2009	6112471.652158702
2010	113952211.91894545
2011	-154200397.95221758
2012	-370157757.5255269
2013	-402758884.68661046
2014	-223842985.30888286
2015	-336020219.65007997
2016	-309398354.94872713
2017	-307409601.6507761
2018	-45276987.51042602
2019	202577430.24694738
2020	-236600730.55883715
2021	-1174334242.2657442
2022	178061542.39333326
2023	164656904.12838438