Campbell wind_speed 1961 - - - 17.0 14.1 20.0 13.6 15.9 16.9 18.8 18.2 19.1 1962 18.5 18.1 17.0 17.7 15.0 16.7 16.9 19.9 18.0 15.7 17.9 17.8 1963 18.3 17.4 18.1 17.1 19.8 17.3 12.8 16.5 16.8 25.2 19.9 17.3 1964 16.0 14.8 18.4 21.4 21.2 16.7 16.5 18.2 18.7 15.8 16.0 14.0 1965 12.2 17.1 15.4 20.1 17.9 22.0 16.8 17.0 19.4 21.0 17.6 21.1 1966 18.4 18.8 15.3 19.3 13.9 21.2 13.8 16.8 17.9 20.8 17.5 15.0 1967 14.1 19.9 20.0 22.0 19.8 22.9 18.6 21.0 14.6 21.3 16.0 15.9 1968 15.5 19.9 17.9 14.9 15.3 14.1 17.7 17.2 19.5 19.5 18.3 15.1 1969 15.7 18.7 20.4 16.9 16.4 20.1 18.0 20.0 14.6 21.3 18.4 15.8 1970 19.4 16.7 15.4 20.0 16.2 16.4 14.1 17.8 - - 19.5 17.9 1971 14.4 18.1 19.3 19.0 14.4 11.2 11.4 9.4 17.4 15.1 15.3 15.4 1972 14.2 19.6 17.9 17.9 21.4 15.8 13.6 16.4 20.2 22.2 19.4 14.6 1973 17.2 20.3 15.8 19.6 13.8 18.8 13.7 13.3 19.4 22.3 16.7 16.5 1974 19.6 17.3 17.6 15.1 20.4 15.2 15.0 15.2 15.8 19.8 16.9 14.3 1975 12.4 18.0 18.2 20.7 19.5 19.8 18.2 15.7 22.9 18.8 18.7 17.2 1976 18.2 18.0 19.9 19.5 17.3 16.7 17.4 9.9 14.5 12.8 10.7 11.4 1977 13.9 18.3 19.2 14.6 14.5 16.6 14.8 15.1 14.5 22.3 20.2 14.3 1978 17.8 18.5 21.0 18.4 18.0 17.9 19.2 16.9 18.2 19.7 21.0 15.3 1979 21.1 19.9 17.9 18.5 17.9 22.0 17.0 13.6 16.5 16.5 16.4 15.4 1980 16.4 15.5 15.7 20.5 19.3 15.1 15.4 19.5 18.1 18.7 18.6 12.6 1981 18.6 - 14.7 15.9 16.0 13.8 12.9 - - - - - 1982 - - - 11.3 11.3 14.9 15.7 19.9 20.0 17.5 - - 1983 - - - 19.4 19.6 17.1 16.8 20.5 16.9 17.7 - - 1984 - - - 19.7 18.5 23.0 15.8 14.0 14.0 - - - 1985 - - 19.7 18.6 17.4 17.0 17.2 18.3 18.9 - - - 1986 - - 15.7 17.7 18.8 18.3 13.9 11.3 16.4 - - - 1987 - - 13.8 21.4 20.6 19.8 19.6 18.1 18.8 - - - 1988 - - - 21.3 20.5 18.5 16.1 18.9 16.2 14.2 - - 1989 - - - 18.6 16.1 18.9 13.0 10.4 12.1 - - - 1990 - - - - - - - - - - - - 1991 - - - - - - - - - - - - 1992 - - - - 16.9 - - - 12.1 - - - 1993 - - - 12.9 17.1 - 17.6 14.9 16.3 - - - 1994 - - - 17.4 14.4 13.0 15.0 18.6 13.8 - - - 1995 18.5 15.7 17.5 13.6 17.9 14.7 14.3 15.0 17.2 15.8 16.7 15.4 1996 11.1 14.0 - 12.8 19.5 15.1 11.9 12.0 13.4 15.8 11.2 13.8 1997 14.1 14.6 17.2 15.1 17.3 17.6 16.2 14.4 18.6 18.0 18.6 15.4 1998 15.7 - 17.5 17.6 15.4 19.5 17.7 20.4 18.6 14.9 17.3 15.3 1999 16.0 16.2 14.3 16.5 17.8 - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - - - - - - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - 12.8 16.1 17.2 15.1 18.7 15.1 2008 18.6 15.0 18.2 15.9 12.9 18.5 12.2 15.0 - 18.8 15.8 13.1 2009 15.1 - - - - - - - - - - -