Year current US$ 1970 909999.9796599147 1971 1089999.9924004083 1972 1459999.9878555536 1973 1379999.9635666609 1974 1380000.0138580801 1975 1799999.9895691895 1976 2239999.9462068095 1977 1899999.92214143 1978 1689999.9491870403 1979 1080000.007525087 1980 2270000.0051408964 1981 2309999.948367479 1982 2259999.953210349 1983 2980000.0861287126 1984 9849999.703466887 1985 17950000.62137842 1986 12919999.994337562 1987 11159999.806433916 1988 9799999.902024867 1989 5580000.020563604 1990 6950000.125914813 1991 6200000.064447517 1992 4369999.958202234 1993 2899999.983608721 1994 1539999.9935179949 1995 1169999.9812990418 1996 2029999.9807030011 1997 80000.0000745059 1998 70000.00029802322 1999 39999.9991059303 2000 340000.0110268594 2001 570000.0002980226 2002 619999.9861419201 2003 1350000.025704503 2004 2669999.9868869823 2005 29999.999329447783 2006 160000.0001490121 2007 849999.9828636642 2008 19999.99955296516 2009 19999.99955296516 2010 259999.99418854716 2011 1649999.9854713676 2012 2209999.999031424 2013 250000.00558793498 2014 99999.99776482591 2015 220000.0043958421 2016 380000.00081956404 2017 689999.9957531699 2018 200000.0029802322 2019 149999.9966472388 2020 99999.99962747094 2021 159999.99828636646 2022 46069998.778402835