Year	current US$
1976	310000.002384186
1977	1919999.95708466
1978	280000.001192093
1979	2509999.99046326
1980	1740000.0095367401
1981	2250000
1982	2490000.00953674
1983	4489999.771118159
1984	3549999.95231628
1985	1690000.0572204601
1986	1539999.96185303
1987	6670000.07629395
1988	3589999.91416931
1989	2700000.04768372
1990	600000.023841858
1991	6789999.96185303
1992	6170000.07629395
1993	7030000.20980835
1994	1679999.94754791
1995	3460000.03814697
1996	540000.021457672
1997	-70000.0002980232
1998	400000.00596046395
1999	870000.004768372
2000	3150000.09536743
2001	9520000.45776367
2002	5530000.20980835
2003	1700000.04768372
2004	1889999.98569489
2005	2829999.92370605
2006	3269999.98092651
2007	2240000.00953674
2008	10220000.2670288
2009	8970000.26702881
2010	11420000.076293899
2011	20549999.237060502
2012	7769999.98092651
2013	3039999.96185303
2014	8649999.61853027
2015	13050000.1907349
2016	6239999.771118159
2017	8119999.88555908
2018	16139999.389648398
2019	6550000.19073486
2020	540000.021457672
2021	689999.997615814
2022	300000.011920929