Year	current US$
1968	79999.9982118607
1969	19999.9995529652
1971	19999.9995529652
1972	29999.999329447703
1973	9999.99977648258
1974	39999.9991059303
1975	170000.00178813902
1976	419999.986886978
1977	610000.014305115
1978	360000.01430511504
1979	600000.023841858
1980	2000000
1981	3779999.97138977
1982	1929999.94754791
1983	2460000.03814697
1984	1590000.0333786
1985	2039999.96185303
1986	2619999.8855590797
1987	2579999.92370605
1988	2549999.95231628
1989	3130000.1144409203
1990	1990000.0095367401
1991	1820000.05245209
1992	3150000.09536743
1993	2609999.89509583
1994	1870000.00476837
1995	319999.99284744303
1996	1210000.03814697
1997	949999.988079071
1998	1019999.98092651
1999	689999.997615814
2000	560000.002384186
2001	980000.019073486
2002	689999.997615814
2003	389999.98569488496
2004	860000.014305115
2005	949999.988079071
2006	1279999.97138977
2007	1480000.01907349
2008	2349999.90463257
2009	1809999.9427795399
2010	1460000.03814697
2011	709999.978542328
2012	755129.516124725
2013	906181.9911003109
2014	1393624.90177155
2015	1217912.55474091
2016	1160194.75460052
2017	2055283.30802917
2018	1877601.98116302
2019	2105220.0794220003
2020	3171240.80657959
2021	3649966.00151062
2022	2244926.21421814