Year	current US$
1972	250000
1973	430000.00715255697
1974	899999.976158142
1975	4639999.8664856
1976	3319999.9332428
1977	2690000.05722046
1978	3079999.92370605
1979	1610000.01430511
1980	1200000.04768372
1981	1269999.98092651
1982	1049999.95231628
1983	949999.988079071
1984	1269999.98092651
1985	930000.007152557
1986	750000
1987	1110000.01430511
1988	899999.976158142
1989	1250000
1990	1639999.98569489
1991	1480000.01907349
1992	1029999.97138977
1993	1509999.9904632599
1994	1440000.0572204601
1995	2000000
1996	2450000.04768372
1997	2940000.05722046
1998	2220000.02861023
1999	2119999.8855590797
2000	1870000.00476837
2001	1970000.02861023
2002	1940000.0572204601
2003	2220000.02861023
2004	3359999.89509583
2005	3940000.05722046
2006	4489999.771118159
2007	3619999.8855590797
2008	2690000.05722046
2009	3930000.0667572
2010	2250000
2011	4800000.19073486
2012	3859999.89509583
2013	10159999.8474121
2014	7130000.11444092
2015	6429999.82833862
2016	3049999.95231628
2017	2269999.98092651
2018	6349999.90463257
2019	3049999.95231628
2020	4989999.771118159
2021	2190000.05722046
2022	3309999.94277954