1986 01 22.93 1986 02 15.46 1986 03 12.61 1986 04 12.84 1986 05 15.38 1986 06 13.43 1986 07 11.59 1986 08 15.10 1986 09 14.87 1986 10 14.90 1986 11 15.22 1986 12 16.11 1987 01 18.65 1987 02 17.75 1987 03 18.30 1987 04 18.68 1987 05 19.44 1987 06 20.07 1987 07 21.34 1987 08 20.31 1987 09 19.53 1987 10 19.86 1987 11 18.85 1987 12 17.28 1988 01 17.13 1988 02 16.80 1988 03 16.20 1988 04 17.86 1988 05 17.42 1988 06 16.53 1988 07 15.50 1988 08 15.52 1988 09 14.54 1988 10 13.77 1988 11 14.14 1988 12 16.38 1989 01 18.02 1989 02 17.94 1989 03 19.48 1989 04 21.07 1989 05 20.12 1989 06 20.05 1989 07 19.78 1989 08 18.58 1989 09 19.59 1989 10 20.10 1989 11 19.86 1989 12 21.10 1990 01 22.86 1990 02 22.11 1990 03 20.39 1990 04 18.43 1990 05 18.20 1990 06 16.70 1990 07 18.45 1990 08 27.31 1990 09 33.51 1990 10 36.04 1990 11 32.33 1990 12 27.28 1991 01 25.23 1991 02 20.48 1991 03 19.90 1991 04 20.83 1991 05 21.23 1991 06 20.19 1991 07 21.40 1991 08 21.69 1991 09 21.89 1991 10 23.23 1991 11 22.46 1991 12 19.50 1992 01 18.79 1992 02 19.01 1992 03 18.92 1992 04 20.23 1992 05 20.98 1992 06 22.39 1992 07 21.78 1992 08 21.34 1992 09 21.88 1992 10 21.69 1992 11 20.34 1992 12 19.41 1993 01 19.03 1993 02 20.09 1993 03 20.32 1993 04 20.25 1993 05 19.95 1993 06 19.09 1993 07 17.89 1993 08 18.01 1993 09 17.50 1993 10 18.15 1993 11 16.61 1993 12 14.52 1994 01 15.03 1994 02 14.78 1994 03 14.68 1994 04 16.42 1994 05 17.89 1994 06 19.06 1994 07 19.66 1994 08 18.38 1994 09 17.45 1994 10 17.72 1994 11 18.07 1994 12 17.16 1995 01 18.04 1995 02 18.57 1995 03 18.54 1995 04 19.90 1995 05 19.74 1995 06 18.45 1995 07 17.33 1995 08 18.02 1995 09 18.23 1995 10 17.43 1995 11 17.99 1995 12 19.03 1996 01 18.86 1996 02 19.09 1996 03 21.33 1996 04 23.50 1996 05 21.17 1996 06 20.42 1996 07 21.30 1996 08 21.90 1996 09 23.97 1996 10 24.88 1996 11 23.71 1996 12 25.23 1997 01 25.13 1997 02 22.18 1997 03 20.97 1997 04 19.70 1997 05 20.82 1997 06 19.26 1997 07 19.66 1997 08 19.95 1997 09 19.80 1997 10 21.33 1997 11 20.19 1997 12 18.33 1998 01 16.72 1998 02 16.06 1998 03 15.12 1998 04 15.35 1998 05 14.91 1998 06 13.72 1998 07 14.17 1998 08 13.47 1998 09 15.03 1998 10 14.46 1998 11 13.00 1998 12 11.35 1999 01 12.52 1999 02 12.01 1999 03 14.68 1999 04 17.31 1999 05 17.72 1999 06 17.92 1999 07 20.10 1999 08 21.28 1999 09 23.80 1999 10 22.69 1999 11 25.00 1999 12 26.10 2000 01 27.26 2000 02 29.37 2000 03 29.84 2000 04 25.72 2000 05 28.79 2000 06 31.82 2000 07 29.70 2000 08 31.26 2000 09 33.88 2000 10 33.11 2000 11 34.42 2000 12 28.44 2001 01 29.59 2001 02 29.61 2001 03 27.25 2001 04 27.49 2001 05 28.63 2001 06 27.60 2001 07 26.43 2001 08 27.37 2001 09 26.20 2001 10 22.17 2001 11 19.64 2001 12 19.39 2002 01 19.72 2002 02 20.72 2002 03 24.53 2002 04 26.18 2002 05 27.04 2002 06 25.52 2002 07 26.97 2002 08 28.39 2002 09 29.66 2002 10 28.84 2002 11 26.35 2002 12 29.46 2003 01 32.95 2003 02 35.83 2003 03 33.51 2003 04 28.17 2003 05 28.11 2003 06 30.66 2003 07 30.76 2003 08 31.57 2003 09 28.31 2003 10 30.34 2003 11 31.11 2003 12 32.13 2004 01 34.31 2004 02 34.69 2004 03 36.74 2004 04 36.75 2004 05 40.28 2004 06 38.03 2004 07 40.78 2004 08 44.90 2004 09 45.94 2004 10 53.28 2004 11 48.47 2004 12 43.15 2005 01 46.84 2005 02 48.15 2005 03 54.19 2005 04 52.98 2005 05 49.83 2005 06 56.35 2005 07 59.00 2005 08 64.99 2005 09 65.59 2005 10 62.26 2005 11 58.32 2005 12 59.41 2006 01 65.49 2006 02 61.63 2006 03 62.69 2006 04 69.44 2006 05 70.84 2006 06 70.95 2006 07 74.41 2006 08 73.04 2006 09 63.80 2006 10 58.89 2006 11 59.08 2006 12 61.96 2007 01 54.51 2007 02 59.28 2007 03 60.44 2007 04 63.98 2007 05 63.46 2007 06 67.49 2007 07 74.12 2007 08 72.36 2007 09 79.92 2007 10 85.80 2007 11 94.77 2007 12 91.69 2008 01 92.97 2008 02 95.39 2008 03 105.45 2008 04 112.58 2008 05 125.40 2008 06 133.88 2008 07 133.37 2008 08 116.67 2008 09 104.11 2008 10 76.61 2008 11 57.31 2008 12 41.12 2009 01 41.71 2009 02 39.09 2009 03 47.94 2009 04 49.65 2009 05 59.03 2009 06 69.64 2009 07 64.15 2009 08 71.05 2009 09 69.41 2009 10 75.72 2009 11 77.99 2009 12 74.47 2010 01 78.33 2010 02 76.39 2010 03 81.20 2010 04 84.29 2010 05 73.74 2010 06 75.34 2010 07 76.32 2010 08 76.60 2010 09 75.24 2010 10 81.89 2010 11 84.25 2010 12 89.15 2011 01 89.17 2011 02 88.58 2011 03 102.86 2011 04 109.53 2011 05 100.90 2011 06 96.26 2011 07 97.30 2011 08 86.33 2011 09 85.52 2011 10 86.32 2011 11 97.16 2011 12 98.56 2012 01 100.27 2012 02 102.20 2012 03 106.16 2012 04 103.32 2012 05 94.66 2012 06 82.30 2012 07 87.90 2012 08 94.13 2012 09 94.51 2012 10 89.49 2012 11 86.53 2012 12 87.86 2013 01 94.76 2013 02 95.31 2013 03 92.94 2013 04 92.02 2013 05 94.51 2013 06 95.77 2013 07 104.67 2013 08 106.57 2013 09 106.29 2013 10 100.54 2013 11 93.86 2013 12 97.63 2014 01 94.62 2014 02 100.82 2014 03 100.80 2014 04 102.07 2014 05 102.18 2014 06 105.79 2014 07 103.59 2014 08 96.54 2014 09 93.21 2014 10 84.40 2014 11 75.79 2014 12 59.29 2015 01 47.22 2015 02 50.58 2015 03 47.82 2015 04 54.45 2015 05 59.27 2015 06 59.82 2015 07 50.90 2015 08 42.87 2015 09 45.48 2015 10 46.22 2015 11 42.44 2015 12 37.19 2016 01 31.68 2016 02 30.32 2016 03 37.55 2016 04 40.75 2016 05 46.71 2016 06 48.76 2016 07 44.65 2016 08 44.72 2016 09 45.18 2016 10 49.78 2016 11 45.66 2016 12 51.97 2017 01 52.50 2017 02 53.47 2017 03 49.33 2017 04 51.06 2017 05 48.48 2017 06 45.18 2017 07 46.63 2017 08 48.04 2017 09 49.82 2017 10 51.58 2017 11 56.64 2017 12 57.88 2018 01 63.70 2018 02 62.23 2018 03 62.73 2018 04 66.25 2018 05 69.98 2018 06 67.87 2018 07 70.98 2018 08 68.06 2018 09 70.23 2018 10 70.75 2018 11 56.96 2018 12 49.52 2019 01 51.38 2019 02 54.95 2019 03 58.15 2019 04 63.86 2019 05 60.83 2019 06 54.66 2019 07 57.35 2019 08 54.81 2019 09 56.95 2019 10 53.96 2019 11 57.03 2019 12 59.88 2020 01 57.52 2020 02 50.54 2020 03 29.21 2020 04 16.55 2020 05 28.56 2020 06 38.31 2020 07 40.71 2020 08 42.34 2020 09 39.63 2020 10 39.40 2020 11 40.94 2020 12 47.02