Marsh 12Z wind_speed 1987 - - - - - - - - - - - - 1988 - - - - - - - - - 15.1 - - 1989 12.5 - - 16.7 - 15.1 13.8 - - 14.4 8.2 - 1990 - - - - 9.2 - - - 10.2 11.2 - - 1991 8.3 - 12.7 12.0 - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - 19.7 16.4 11.5 1994 - - 13.6 16.8 - 14.8 18.3 19.1 19.0 20.1 15.0 - 1995 - - - - - 14.5 19.3 19.4 - 15.8 16.0 14.8 1996 15.1 - - 14.9 20.7 19.4 - - - 20.8 23.1 - 1997 14.7 10.7 19.0 16.6 - - - - 14.2 19.1 - - 1998 14.1 - 15.5 21.4 12.9 13.8 17.0 17.0 17.0 18.4 17.2 16.9 1999 14.8 15.8 17.7 19.9 17.5 18.7 18.2 21.8 16.3 20.7 18.3 14.6 2000 15.2 13.3 16.9 21.4 - 17.6 13.1 16.7 18.7 18.6 12.2 15.7 2001 15.5 20.1 - 17.1 15.3 19.3 - 23.0 19.0 25.1 - 22.3 2002 - 18.7 13.9 - 18.2 21.2 18.2 18.7 17.0 20.5 16.2 16.3 2003 13.4 14.3 17.7 18.3 19.6 22.3 18.0 - - 21.3 15.0 15.7 2004 14.5 13.9 15.4 18.3 19.0 18.4 22.2 25.7 19.2 - - 17.6 2005 12.5 18.9 17.1 16.3 15.5 16.4 18.4 15.8 13.5 16.7 16.3 15.2 2006 - - 15.3 14.4 - - - 18.0 15.6 - 16.6 16.6 2007 12.9 12.0 13.2 - - - 15.4 18.4 15.5 22.6 13.5 14.3 2008 15.1 15.9 14.1 19.6 18.0 20.7 18.0 18.0 17.7 - 15.3 19.4 2009 12.8 - - - - - - - - - - -