Year	current US$
1980	9150327.47340818
1981	11949448.0238846
1982	15224194.9545302
1983	12159455.228036
1984	12693786.6045205
1985	10979904.6284219
1986	7233479.49431989
1987	3259430.38418251
1988	2747480.25909429
1989	4256679.43090513
1990	4830628.74636928
1991	5334751.09193415
1992	4519630.69509061
1993	3235400.83508264
1994	900132.000236184
1995	1370637.25489606
1996	2094951.64810832
1997	2657221.87593047
1998	3340782.57219789
1999	1686588.59724416
2000	2046746.45439055
2001	4288190.95594528
2002	4885496.26783974
2003	2447214.31247686
2004	3898047.71241464
2005	15063280.077236
2006	17215571.31057
2007	4162199.41024628
2008	55004632.4274517
2009	25462077.8865251
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0