Year	current US$
1977	219999.998807907
1980	709999.978542328
1981	1110000.01430511
1982	1460000.03814697
1983	1440000.0572204601
1984	1059999.9427795399
1985	1309999.9427795399
1986	1450000.04768372
1987	1500000
1988	1710000.03814697
1989	2170000.07629395
1990	2339999.91416931
1991	1129999.99523163
1992	550000.011920929
1993	2210000.03814697
1994	1009999.99046326
1995	2470000.02861023
1996	3089999.91416931
1997	1750000
1998	2490000.00953674
1999	2869999.8855590797
2000	1570000.05245209
2001	2470000.02861023
2002	2049999.9523162802
2003	1700000.04768372
2004	3950000.04768372
2005	4409999.84741211
2006	4550000.19073486
2007	5980000.01907349
2008	7619999.88555908
2009	8640000.34332275
2010	6940000.05722046
2011	4630000.11444092
2012	4600934.9822998
2013	4356864.92919922
2014	3315370.55969238
2015	3982249.97520447
2016	3317848.92082214
2017	3494071.96044922
2018	3473949.9092102097
2019	4358462.81051636
2020	4560309.88693237
2021	5316292.76275635
2022	5065050.12512207