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 35.7 59.5 65.1 50.0 45.6 74.9 64.0 29.0 57.2 35.9 48.6 29.8 2004 33.2 41.0 53.6 35.6 30.3 68.6 - 43.1 - - 29.2 23.1 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -