Year current US$ 1978 439999.997615814 1979 319999.99284744303 1981 340000.00357627904 1982 159999.99642372102 1984 500000 1985 810000.002384186 1986 70000.0002980232 1987 800000.011920929 1988 29999.999329447703 1989 1600000.02384186 1990 839999.973773956 1991 360000.01430511504 1993 39999.9991059303 1994 1940000.0572204601 1995 79999.9982118607 1996 79999.9982118607 1997 39999.9991059303 2000 100000.00149011599 2004 19999.9995529652 2005 19999.9995529652 2006 19999.9995529652 2020 90000.0035762787 2021 29999.999329447703 2022 19999.9995529652