Clean_Air wind_direction 1986 - 41.1 57.0 40.8 80.3 81.3 65.1 46.0 - - 37.7 48.2 1987 43.9 51.0 51.4 70.7 69.1 66.3 - - - - 74.3 68.7 1988 21.8 71.8 53.2 71.6 83.0 73.5 68.8 44.1 48.8 72.6 63.8 65.1 1989 47.9 64.6 72.5 95.2 70.8 75.2 60.0 38.6 56.2 74.2 48.5 40.4 1990 42.1 65.0 78.2 79.8 88.1 49.1 65.9 63.5 - - - 26.7 1991 43.2 51.8 66.2 87.2 80.6 82.3 70.4 76.1 45.6 66.8 45.1 57.9 1992 52.6 71.4 99.1 49.4 75.0 55.8 87.1 72.4 40.8 52.3 58.6 54.2 1993 44.8 54.4 60.0 72.1 65.5 77.0 46.3 70.9 60.8 - - - 1994 - 63.4 38.1 71.1 40.2 54.9 80.4 42.6 57.2 46.2 25.9 66.6 1995 63.7 41.5 60.1 54.9 69.9 62.0 59.3 71.7 85.0 34.4 29.5 32.2 1996 52.2 38.1 71.2 52.4 66.9 45.3 52.9 51.7 61.6 46.0 47.1 33.5 1997 57.0 72.8 73.1 37.6 44.1 65.3 66.1 36.0 56.6 72.5 36.0 67.5 1998 6.4 49.8 51.4 57.9 70.0 57.7 52.6 67.5 59.2 63.4 22.8 25.2 1999 28.3 47.2 56.0 55.4 38.3 71.8 80.5 57.7 77.9 42.2 40.5 35.1 2000 27.9 22.1 60.5 52.6 52.4 47.2 34.5 37.1 43.8 2.0 2.7 15.7 2001 26.6 33.4 34.3 46.4 38.0 36.6 48.8 46.2 28.0 31.5 17.8 12.2 2002 15.7 33.1 35.1 23.1 48.7 57.4 15.2 25.0 60.4 45.4 21.9 32.5 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - 193.3 - 155.3 153.5 151.0 109.8 137.4 108.2 158.6 155.2 2.9 2006 354.0 - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - -