1986 06 99.99   8.72 -99.99 
1986 07 16.23   6.20  11.21 
1986 08 17.04   6.92  11.98 
1986 09 99.99  10.66 -99.99 
1986 10 99.99  10.14 -99.99 
1986 11 99.99  14.17 -99.99 
1986 12 99.99  16.45 -99.99 
1987 01 99.99  17.23 -99.99 
1987 02 99.99  17.35 -99.99 
1987 05 99.99  10.04 -99.99 
1987 06 19.54  12.21  15.87 
1987 07 99.99  10.16 -99.99 
1987 08 18.99  10.00  14.49 
1987 09 21.55  10.70  16.12 
1987 10 22.61  14.16  18.38 
1987 11 24.54  16.17  20.35 
1987 12 27.20  18.21  22.71 
1988 01 28.74  17.70  23.22 
1988 02 33.31  19.12  26.21 
1988 03 31.16  19.49  25.32 
1988 04 25.99  15.32  20.65 
1988 05 21.40  12.87  17.13 
1988 06 19.36  11.27  15.31 
1988 07 18.08   9.47  13.78 
1988 08 18.60   9.74  14.17 
1988 09 20.78  12.46  16.62 
1989 03 99.99  17.96 -99.99 
1989 04 99.99  15.47 -99.99 
1989 05 99.99  12.12 -99.99 
1989 06 99.99   7.67 -99.99 
1989 07 99.99   8.34 -99.99 
1989 08 99.99   7.94 -99.99 
1989 09 99.99  11.76 -99.99 
1989 10 99.99  11.02 -99.99 
1989 11 99.99  15.95 -99.99 
1989 12 99.99  15.95 -99.99 
1990 01 99.99  16.95 -99.99 
1990 02 99.99  20.37 -99.99 
1990 06 99.99   5.70 -99.99 
1990 07 99.99   7.53 -99.99 
1990 08 99.99   9.09 -99.99 
1990 09 99.99   9.50 -99.99 
1990 10 99.99  10.88 -99.99 
1990 11 99.99  14.05 -99.99 
1990 12 99.99  14.28 -99.99 
1991 02 30.25  17.79  24.02 
1991 03 28.06  16.75  22.40 
1991 04 26.62  15.12  20.87 
1991 05 21.65  11.19  16.42 
1991 06 19.24  11.43  15.33 
1991 07 18.04   9.16  13.60 
1991 08 18.86   9.54  14.20 
1991 09 19.26   9.67  14.46 
1991 10 23.28  12.12  17.70 
1991 11 23.11  12.51  17.81 
1991 12 27.60  17.09  22.34 
1992 01 31.96  19.28  25.62 
1992 02 29.21  18.64  23.92 
1992 03 27.10  17.61  22.35 
1992 04 25.98  14.94  20.45 
1992 05 20.73  11.14  15.93 
1992 06 19.12  10.83  14.97 
1992 07 19.14  10.62  14.87 
1992 08 99.99   9.62 -99.99 
1992 09 18.57   9.43  14.00 
1992 10 22.69  11.43  17.06 
1992 11 24.97  14.28  19.62 
1992 12 27.93  16.52  22.22 
1993 01 30.72  17.96  24.34 
1993 02 30.08  17.10  23.59 
1993 03 26.95  15.79  21.37 
1993 04 24.32  13.51  18.91 
1993 05 21.76  10.70  16.23 
1993 06 18.37   9.49  13.93 
1993 07 18.11   8.80  13.45 
1993 08 18.17   8.18  13.18 
1993 09 20.78   9.93  15.35 
1993 10 21.11  10.53  15.82 
1993 11 26.43  15.35  20.89 
1994 01 30.19  17.83  24.01 
1994 02 29.79  17.31  23.55 
1994 03 30.51  16.93  23.72 
1994 04 27.70  14.77  21.23 
1994 05 23.37  11.60  17.48 
1994 06 19.29   9.68  14.49 
1994 07 19.67   9.71  14.69 
1994 08 20.09   8.52  14.30 
1994 09 22.09  10.65  16.36 
1994 10 23.52  11.82  17.67 
1994 11 27.59  15.13  21.36 
1994 12 30.22  17.77  23.99 
1995 01 32.16  19.62  25.89 
1995 03 31.77  17.65  24.71 
1995 04 26.01  13.58  19.79 
1995 05 21.44   9.92  15.68 
1995 06 18.58 -99.99 -99.99 
1995 08 19.96   9.41  14.69 
1995 10 23.75  12.75  18.25 
1995 11 25.25  14.00  19.62 
1995 12 28.07  16.31  22.18 
1996 01 31.70  17.51  24.60 
1996 02 34.36  19.37  26.86 
1996 03 99.99  16.21 -99.99 
1996 04 26.57  14.37  20.46 
1996 05 23.61  10.03  16.82 
1996 06 19.79  10.10  14.95 
1996 07 18.67  10.34  14.50 
1996 08 18.98   8.87  13.92 
1996 09 20.32  10.67  15.49 
1996 10 24.50  11.49  17.99 
1996 11 26.50  15.25  20.87 
1996 12 99.99  15.79 -99.99 
1997 01 33.59  19.02  26.31 
1997 02 32.03  20.12  26.07 
1997 03 28.44  16.77  22.60 
1997 04 27.00  15.30  21.15 
1997 05 21.25  11.80  16.52 
1997 06 20.20  11.01  15.61 
1997 07 99.99   5.53 -99.99 
1997 08 99.99   7.50 -99.99 
1997 09 21.09  10.09  15.59 
1997 10 99.99  12.26 -99.99 
1997 11 27.42  13.97  20.69 
1998 01 32.43  18.20  25.31 
1998 03 30.69  17.33  24.01 
1998 04 26.14  13.69  19.91 
1998 07 17.60 -99.99 -99.99 
1998 11 26.11  13.43  19.77 
1999 01 30.79  18.10  24.44 
1999 02 33.41  18.62  26.01 
1999 03 28.78  17.29  23.04 
1999 04 29.22 -99.99 -99.99 
1999 06 19.87  10.07  14.97 
1999 07 19.31   8.72  14.01 
1999 08 19.58   8.50  14.04 
1999 09 20.28   8.87  14.57 
1999 10 22.96  10.79  16.87 
1999 11 28.05  14.47  21.26 
1999 12 32.75  18.08  25.41 
2000 01 31.47  18.50  24.98 
2000 02 33.15  18.73  25.94 
2000 03 30.40 -99.99 -99.99 
2000 04 26.67  13.66  20.16 
2000 05 22.92   9.08  16.00 
2000 06 20.16   9.25  14.70 
2000 07 18.46  10.67  14.57 
2000 08 18.43   8.10  13.26 
