Year current US$ 1977 90000.0035762787 1980 330000.013113022 1981 289999.99165535 1982 490000.009536743 1983 259999.990463257 1984 479999.989271164 1985 910000.026226044 1986 419999.986886978 1987 189999.99761581398 1988 569999.992847443 1989 550000.011920929 1990 479999.989271164 1991 810000.002384186 1992 529999.971389771 1993 560000.002384186 1994 1519999.98092651 1995 1759999.9904632599 1996 2029999.97138977 1997 2710000.03814697 1998 2240000.00953674 1999 1759999.9904632599 2000 1200000.04768372 2001 2430000.0667572 2002 2029999.97138977 2003 2119999.8855590797 2004 1360000.01430511 2005 1399999.97615814 2006 1480000.01907349 2007 1559999.9427795399 2008 1610000.01430511 2009 1549999.95231628 2010 1450000.04768372 2011 1500000 2012 1579022.04990387 2013 1377794.02732849 2014 1406065.2256012 2015 1269869.92359161 2016 951451.182365417 2017 805999.100208282 2018 769860.029220581 2019 1352812.64781952 2020 1713430.0470352198 2021 1431521.0580825799 2022 1594300.0316619899