Year current US$ 1977 100000.00149011599 1980 479999.989271164 1981 129999.995231628 1982 180000.00715255702 1983 59999.9986588955 1984 109999.999403954 1985 389999.98569488496 1986 280000.001192093 1987 200000.00298023198 1988 79999.9982118607 1989 209999.993443489 1990 250000 1991 699999.988079071 1992 610000.014305115 1993 779999.971389771 1994 479999.989271164 1995 560000.002384186 1996 680000.007152557 1997 689999.997615814 1998 50000.0007450581 1999 150000.005960464 2000 180000.00715255702 2001 250000 2002 449999.988079071 2003 400000.00596046395 2004 349999.99403953605 2005 119999.997317791 2006 540000.021457672 2007 810000.002384186 2008 1019999.98092651 2009 1450000.04768372 2010 1690000.0572204601 2011 1610000.01430511 2012 1785369.9922561601 2013 1530994.05765533 2014 957645.5950737 2015 931332.588195801 2016 751339.077949524 2017 678367.674350739 2018 509090.00635147095 2019 1196266.05510712 2020 1114869.95220184 2021 1437679.76760864 2022 1195090.0554657