1993 07 29.59  24.53  27.06 
1993 08 29.43  23.20  26.31 
1993 09 29.39  23.47  26.43 
1993 10 29.42  23.71  26.56 
1993 11 29.44  24.11  26.77 
1993 12 28.78  23.76  26.27 
1994 01 28.33  22.80  25.56 
1994 02 28.10  22.46  25.28 
1994 03 28.62  23.03  25.82 
1994 04 29.39  23.93  26.66 
1994 05 29.85  24.04  26.94 
1994 06 30.83  24.15  27.49 
1994 07 30.17  23.51  26.84 
1994 08 30.56  23.75  27.15 
1994 09 30.37  23.71  27.04 
1994 10 30.27  23.42  26.84 
1994 11 29.69  24.02  26.85 
1994 12 28.78  23.57  26.17 
1995 01 28.18  22.67  25.42 
1995 02 27.52  21.71  24.61 
1995 03 28.23  22.88  25.55 
1995 04 29.22  24.05  26.63 
1995 05 29.69  24.23  26.96 
1995 06 99.99  25.72 -99.99 
1995 07 30.01  24.07  27.04 
1995 08 29.90  24.09  26.99 
1995 10 29.93  23.91  26.92 
1995 11 30.16  24.20  27.18 
1995 12 29.46  23.77  26.61 
1996 01 28.54  23.08  25.81 
1996 02 28.50  22.94  25.72 
1996 03 29.01  23.66  26.33 
1996 04 29.31  24.18  26.74 
1996 05 30.51  24.77  27.64 
1996 06 31.11  25.35  28.23 
1996 07 30.45  23.96  27.20 
1996 08 30.55  23.72  27.13 
1996 09 30.07  24.22  27.14 
1996 10 31.05  23.90  27.47 
1996 11 30.06  24.06  27.06 
1996 12 29.60  24.28  26.94 
1997 01 28.99  23.18  26.08 
1997 02 28.97  23.15  26.06 
1997 03 29.35  22.81  26.08 
1997 04 29.75  23.40  26.57 
1997 05 30.66  23.68  27.17 
1997 06 30.99  24.16  27.57 
1997 07 30.65  24.48  27.56 
1997 08 30.21  23.89  27.05 
1997 09 31.26  23.67  27.46 
1997 10 30.46  24.20  27.33 
1997 11 29.51  24.05  26.78 
1997 12 29.17  24.12  26.64 
1998 01 29.26  23.45  26.35 
1998 02 29.08  23.16  26.12 
1998 03 29.58  22.13  25.85 
1998 04 29.82  23.70  26.76 
1998 05 30.21  24.43  27.32 
1998 06 30.48  24.75  27.61 
1998 07 31.19  24.48  27.83 
1998 08 30.76  25.15  27.95 
1998 09 30.48  24.42  27.45 
1998 10 30.21  24.94  27.57 
1998 11 29.89  24.66  27.27 
1998 12 29.64  24.17  26.90 
1999 01 28.70  23.52  26.11 
1999 02 29.56  23.79  26.67 
1999 03 30.19  24.42  27.30 
1999 06 30.72  24.32  27.52 
1999 07 30.07 -99.99 -99.99 
1999 08 31.01  24.66  27.83 
1999 09 31.65 -99.99 -99.99 
1999 10 30.99  24.38  27.68 
1999 11 30.45  24.41  27.43 
1999 12 29.77  24.18  26.97 
2000 01 29.30  23.24  26.27 
2000 02 29.34 -99.99 -99.99 
2000 03 29.55 -99.99 -99.99 
2000 04 30.23  23.99  27.11 
2000 05 30.43  24.22  27.32 
2000 06 30.59  24.26  27.42 
2000 07 30.40  23.53  26.96 
2000 08 30.42  23.26  26.84 
2000 09 29.80 -99.99 -99.99 
2000 10 30.32 -99.99 -99.99 
2000 11 29.91 -99.99 -99.99 
2000 12 29.25 -99.99 -99.99 
2001 01 28.87 -99.99 -99.99 
2001 02 28.62 -99.99 -99.99 
2001 03 28.84 -99.99 -99.99 
2001 04 29.65 -99.99 -99.99 
2001 05 30.64  24.34  27.49 
2001 06 31.30  24.12  27.71 
2001 07 30.30  23.90  27.09 
2001 09 30.45  23.14  26.79 
2001 10 30.35  23.71  27.03 
2001 11 29.53  23.10  26.31 
2001 12 28.77  23.40  26.08 
2002 01 28.29  23.25  25.77 
2002 02 28.66  22.62  25.64 
2002 03 28.97  23.56  26.26 
2002 04 29.53  22.60  26.06 
2002 05 29.65  23.83  26.74 
2002 07 31.45 -99.99 -99.99 
2002 08 30.69 -99.99 -99.99 
2002 09 30.34 -99.99 -99.99 
2002 10 30.43  23.83  27.13 
2002 11 30.17  23.33  26.75 
2002 12 29.66  22.69  26.17 
2003 01 29.26  22.52  25.89 
2003 02 99.99  21.61 -99.99 
2003 03 29.11  22.36  25.73 
2003 04 29.68  23.40  26.54 
2003 05 29.70  23.85  26.77 
2003 06 29.97  23.95  26.96 
2003 07 30.08  24.31  27.19 
2003 08 30.07  24.34  27.20 
2003 09 29.91  23.70  26.80 
2003 10 30.42  24.15  27.28 
2003 11 29.56  23.69  26.62 
2004 09 31.26  24.83  28.04 
2004 10 31.05 -99.99 -99.99 
2004 11 31.05  25.06  28.05 
2004 12 29.78  24.67  27.22 
2005 01 29.12  23.90  26.51 
2005 02 28.58  23.70  26.14 
2005 03 29.19  23.78  26.48 
2005 04 29.85  24.19  27.02 
2005 05 30.55  24.36  27.45 
2005 06 30.36  25.36  27.86 
2005 07 30.51 -99.99 -99.99 
2005 08 29.97 -99.99 -99.99 
2005 10 30.05  23.84  26.94 
2005 12 29.95  24.70  27.32 
2006 01 29.01  23.74  26.37 
2006 02 29.03  23.36  26.19 
2006 03 29.69  23.76  26.72 
2006 04 30.35  24.02  27.18 
2006 05 30.45 -99.99 -99.99 
2006 06 31.11  24.95  28.03 
2006 07 30.63  23.78  27.20 
2006 08 30.15  22.57  26.36 
2006 09 31.67 -99.99 -99.99 
2006 10 29.88 -99.99 -99.99 
2006 11 29.99  24.43  27.21 
2007 01 29.05  23.18  26.11 
2007 02 29.07  22.83  25.95 
2007 03 28.75  22.24  25.49 
2007 04 30.04  23.97  27.00 
2007 06 31.42  25.29  28.35 
2007 07 30.91  24.32  27.61 
2007 08 30.24  23.71  26.97 
2007 09 30.58  23.81  27.19 
2007 10 30.84  23.74  27.29 
2007 11 30.19  23.69  26.94 
2007 12 29.61  24.20  26.90 
2008 01 29.30  23.87  26.58 
2008 03 29.48  23.62  26.55 
2008 04 30.68  24.08  27.38 
2008 05 30.79 -99.99 -99.99 
2008 06 30.27 -99.99 -99.99 
2008 07 30.40  24.36  27.38 
2008 08 30.40 -99.99 -99.99 
2008 09 30.00 -99.99 -99.99 
2008 10 30.67 -99.99 -99.99 
2008 11 30.63 -99.99 -99.99 
2008 12 30.80 -99.99 -99.99 
2009 01 29.60 -99.99 -99.99 
2009 02 30.07 -99.99 -99.99 
2009 03 29.52  23.21  26.36 
2010 01 28.62  23.56  26.09 
2010 02 29.14  23.76  26.45 
2010 03 29.75  24.43  27.09 
2010 04 29.06  24.08  26.57 
2010 05 29.93 -99.99 -99.99 
2010 06 30.51  24.59  27.55 
2010 07 30.29  24.14  27.21 
2010 08 29.78 -99.99 -99.99 
2010 09 29.00 -99.99 -99.99 
2010 10 29.19 -99.99 -99.99 
2010 11 29.20 -99.99 -99.99 
2010 12 28.99 -99.99 -99.99 
2011 01 28.79  23.79  26.29 
2011 02 28.20 -99.99 -99.99 
2011 03 28.55 -99.99 -99.99 
2011 04 29.10 -99.99 -99.99 
2011 05 29.71 -99.99 -99.99 
2011 06 30.51 -99.99 -99.99 
2011 07 29.78 -99.99 -99.99 
2011 08 29.15  24.02  26.58 
2011 09 28.69  23.14  25.91 
2011 10 28.80  23.47  26.13 
2011 12 29.04  24.48  26.76 
2012 02 28.67  23.05  25.86 
2012 04 26.98 -99.99 -99.99 
