Year	current US$
1968	16170000.076293899
1969	1210000.03814697
1970	1350000.02384186
1971	1490000.0095367401
1972	2019999.9809265102
1973	2109999.89509583
1974	1429999.94754791
1975	1779999.97138977
1976	509999.99046325695
1977	479999.989271164
1978	330000.013113022
1979	239999.994635582
1980	1909999.9666214
1981	3829999.92370605
1982	3089999.91416931
1983	1279999.97138977
1984	839999.973773956
1985	709999.978542328
1986	230000.004172325
1987	490000.009536743
1988	519999.980926514
1989	439999.997615814
1990	349999.99403953605
1991	730000.019073486
1992	1779999.97138977
1993	2769999.98092651
1994	3029999.97138977
1995	2960000.03814697
1996	4369999.88555908
1997	3099999.90463257
1998	1750000
1999	1289999.96185303
2000	579999.983310699
2001	560000.002384186
2002	479999.989271164
2003	540000.021457672
2004	670000.016689301
2005	709999.978542328
2006	1129999.99523163
2007	930000.007152557
2008	1450000.04768372
2009	870000.004768372
2010	2390000.10490417
2011	1840000.0333786
2012	913203.120231628
2013	814683.973789215
2014	366786.867380142
2015	389486.819505692
2016	158720.076084137
2017	181669.622659683
2018	148198.753595352
2019	150590.00253677397
2020	1353330.8506012
2021	2781956.4342498803
2022	1034333.7059021001