Year Average Price %

1953 14424 0.00%
1954 14647 1.50%
1955 14952 2.01%
1956 15043 0.60%
1957 15732 4.60%
1958 16085 2.20%
1959 16615 3.30%
1960 16329 -1.70%
1961 16334 0.03%
1962 16742 2.50%
1963 16517 -1.30%
1964 17370 5.10%
1965 18883 8.70%
1966 21360 13.11%
1967 24078 12.70%
1968 26732 11.01%
1969 28929 8.20%
1970 29492 1.90%
1971 30426 3.20%
1972 32513 6.90%
1973 40605 24.88%
1974 52806 30.01%
1975 57581 9.00%
1976 61389 6.60%
1977 64559 5.20%
1978 67333 4.30%
1979 70830 5.20%
1980 75694 6.90%
1981 90203 19.02%
1982 95496 5.90%
1983 101626 6.10%
1984 102318 0.70%
1985 109094 6.60%
1986 138925 27.30%
1987 189105 36.10%
1988 229635 21.40%
1989 273698 19.20%
1990 255020 -6.80%
1991 234313 -8.10%
1992 214971 -8.30%
1993 206490 -0.39%
1994 208921 1.20%
1995 203028 -2.80%
1996 198150 -2.40%
1997 211307 6.60%
1998 216815 2.60%
1999 228372 5.30%
2000 243255 6.50%
2001 251508 3.40%
2002 275231 9.40%
2003 293067 6.50%
2004 315231 7.60%