Year	current US$
1977	19999.9995529652
1980	409999.99642372096
1981	439999.997615814
1982	280000.001192093
1983	419999.986886978
1984	349999.99403953605
1985	620000.004768372
1986	550000.011920929
1987	509999.99046325695
1988	930000.007152557
1989	259999.990463257
1990	540000.021457672
1991	980000.019073486
1992	629999.995231628
1993	680000.007152557
1994	829999.983310699
1995	1399999.97615814
1996	2430000.0667572
1997	970000.028610229
1998	800000.011920929
1999	709999.978542328
2000	560000.002384186
2001	800000.011920929
2002	490000.009536743
2003	1029999.97138977
2004	1950000.04768372
2005	1379999.99523163
2006	1779999.97138977
2007	1159999.9666214
2008	2430000.0667572
2009	3210000.03814697
2010	2369999.8855590797
2011	2849999.90463257
2012	2667834.99717712
2013	2736733.91342163
2014	2964658.9756012
2015	2602485.65673828
2016	3573018.5508728
2017	3277380.70487976
2018	3042680.02510071
2019	3649480.34286499
2020	3417730.09300232
2021	3508329.15306091
2022	3417109.9662780804