Year	current US$
1968	670000.016689301
1969	1200000.04768372
1970	970000.028610229
1971	1210000.03814697
1972	1269999.98092651
1973	1320000.05245209
1974	1120000.00476837
1975	1700000.04768372
1976	2210000.03814697
1977	1700000.04768372
1978	1960000.03814697
1979	2829999.92370605
1980	3380000.1144409203
1981	4159999.8474121103
1982	4460000.03814697
1983	3019999.98092651
1984	4019999.98092651
1985	4659999.84741211
1986	6039999.96185303
1987	5980000.01907349
1988	6500000
1989	7739999.771118159
1990	4570000.17166138
1991	4039999.96185303
1992	4110000.1335143996
1993	4929999.82833862
1994	5750000
1995	5780000.20980835
1996	7280000.20980835
1997	3150000.09536743
1998	4099999.90463257
1999	3230000.01907349
2000	889999.985694885
2001	3059999.94277954
2002	2819999.9332428
2003	3769999.98092651
2004	5940000.05722046
2005	5010000.228881841
2006	5070000.17166138
2007	6059999.94277954
2008	5960000.03814697
2009	5889999.8664856
2010	5780000.20980835
2011	5239999.771118159
2012	5306805.61065674
2013	4761771.2020874
2014	5236337.1849060105
2015	5816253.1852722205
2016	5223964.69116211
2017	5767282.485961909
2018	5070333.48083496
2019	4408381.46209717
2020	5575807.09457397
2021	6765621.18530273
2022	6284543.03741455