1990 08 31.97  24.23  28.09 
1990 09 31.44  23.96  27.70 
1990 10 31.83  24.08  27.95 
1990 11 31.47  24.06  27.76 
1991 02 31.89  23.52  27.70 
1991 03 30.94  24.47  27.70 
1991 04 31.01  24.69  27.85 
1991 07 31.03  24.51  27.77 
1991 08 30.83  24.33  27.58 
1991 09 31.02  23.91  27.46 
1991 10 31.12  23.85  27.48 
1991 11 30.64  24.47  27.55 
1991 12 30.04  24.55  27.29 
1992 01 29.34  24.51  26.92 
1992 02 29.92  24.90  27.41 
1992 03 30.27  25.06  27.66 
1992 04 31.25  25.85  28.55 
1992 05 30.77  25.10  27.93 
1992 06 31.18  25.43  28.30 
1992 07 31.18  24.25  27.71 
1992 08 31.08  24.24  27.66 
1992 10 31.63  24.20  27.91 
1993 01 29.68  24.64  27.16 
1993 02 30.00  24.75  27.37 
1993 03 30.54  24.61  27.57 
1993 04 31.41  25.18  28.29 
1993 05 31.57  24.83  28.20 
1993 06 31.32  25.06  28.18 
1993 07 31.51  24.50  28.00 
1993 08 31.19  24.49  27.84 
1993 09 31.46  24.82  28.14 
1993 10 31.08  24.42  27.75 
1993 12 31.01  24.36  27.68 
1994 01 30.39  24.46  27.42 
1994 03 30.62  24.94  27.78 
1994 04 30.38  24.91  27.64 
1994 05 30.94  24.76  27.85 
1994 06 31.23  24.26  27.74 
1994 07 31.10  24.45  27.77 
1994 08 30.73  24.11  27.42 
1994 09 30.88  24.51  27.69 
1994 10 31.16  24.55  27.85 
1994 11 31.53  24.55  28.04 
1994 12 31.27  24.53  27.90 
1995 01 30.70  24.19  27.44 
1995 02 31.14  24.27  27.70 
1995 03 31.21  25.02  28.11 
1995 04 31.06  24.78  27.92 
1995 05 31.16  24.54  27.85 
1995 07 31.76  23.46  27.61 
1995 08 32.62  22.01  27.31 
1995 09 32.12  23.38  27.75 
1995 11 30.06  24.07  27.06 
1995 12 30.25  24.86  27.55 
1996 01 29.48  24.71  27.09 
1996 12 29.69  23.59  26.64 
1997 01 29.76  24.96  27.36 
1997 02 29.11  24.06  26.58 
1997 03 30.23  24.32  27.27 
1997 04 29.97  23.56  26.76 
1997 05 28.75  23.80  26.27 
1997 06 29.54 -99.99 -99.99 
1997 07 29.89 -99.99 -99.99 
1997 08 28.58 -99.99 -99.99 
1997 09 29.30  23.53  26.41 
1997 10 28.88 -99.99 -99.99 
1997 12 29.04 -99.99 -99.99 
1998 01 28.55 -99.99 -99.99 
1998 02 29.04 -99.99 -99.99 
1998 03 30.09 -99.99 -99.99 
1998 04 29.58 -99.99 -99.99 
1998 05 29.00 -99.99 -99.99 
1998 06 29.01 -99.99 -99.99 
1998 07 28.86 -99.99 -99.99 
1998 08 28.95 -99.99 -99.99 
1998 09 29.49 -99.99 -99.99 
1998 10 29.30 -99.99 -99.99 
1998 11 28.92 -99.99 -99.99 
1998 12 28.68  23.62  26.15 
1999 01 28.62 -99.99 -99.99 
1999 02 28.59 -99.99 -99.99 
1999 03 28.95  23.83  26.39 
1999 04 28.16  25.55  26.85 
1999 05 28.18  25.69  26.93 
1999 07 27.40 -99.99 -99.99 
1999 08 27.18  24.95  26.06 
1999 09 27.90  24.08  25.99 
1999 10 26.94  24.24  25.59 
1999 11 27.06  24.41  25.73 
1999 12 27.12  25.18  26.15 
2000 01 26.60  24.30  25.45 
2000 02 26.91  24.53  25.72 
2000 03 27.17  25.25  26.21 
2000 05 27.92  25.82  26.87 
2000 09 27.55  24.26  25.90 
2000 10 27.78  24.26  26.02 
2000 11 27.45  21.83  24.64 
2000 12 27.51  23.31  25.41 
2001 01 27.32  23.79  25.55 
2001 02 27.44  24.68  26.06 
2001 03 27.95  24.61  26.28 
2001 04 99.99  24.22 -99.99 
2001 05 28.13  24.63  26.38 
2001 06 28.11  24.45  26.28 
2001 07 28.06  24.75  26.40 
2001 08 28.18  24.22  26.20 
2001 09 27.96  23.87  25.91 
2001 10 27.50  24.50  26.00 
2001 11 27.28  24.36  25.82 
2001 12 28.05  24.62  26.33 
2002 01 27.94  24.39  26.16 
2002 02 28.00  24.21  26.10 
2002 03 28.04  24.26  26.15 
2002 04 28.26  24.10  26.18 
2002 05 28.14  24.06  26.09 
2002 06 28.69  24.82  26.75 
2002 07 28.11  23.88  25.99 
2002 08 27.71  24.09  25.90 
2002 09 27.47  24.16  25.81 
2002 10 27.80  24.19  25.99 
2002 11 27.89  24.02  25.95 
2003 01 27.15  24.26  25.70 
2003 03 30.53  25.19  27.86 
2003 04 27.20 -99.99 -99.99 
2005 12 28.48  24.92  26.70 
2006 01 29.47  24.95  27.21 
