1981 09 23.11 -99.99 -99.99 
1983 04 18.02 -99.99 -99.99 
1983 06 25.13 -99.99 -99.99 
1983 07 27.58 -99.99 -99.99 
1983 08 25.15 -99.99 -99.99 
1984 01  3.62 -99.99 -99.99 
1984 07 99.99  14.42 -99.99 
1984 08 99.99  13.58 -99.99 
1984 12  -.94  -5.05  -2.99 
1985 05 24.87  13.47  19.17 
1985 07 25.00  15.57  20.28 
1985 08 28.06  18.23  23.14 
1985 11  4.62   -.14   2.24 
1986 02 -2.32  -8.14  -5.23 
1986 05 21.05  11.21  16.12 
1986 10 13.90   6.02   9.96 
1986 11  4.41    .18   2.29 
1987 04  9.24   2.15   5.69 
1987 06 24.80  15.09  19.94 
1987 07 28.47  18.15  23.31 
1987 09 20.83  10.87  15.85 
1987 10 13.60   6.32   9.96 
1988 02  1.91  -4.14  -1.11 
1988 03  7.41   1.36   4.38 
1988 04 14.14   5.38   9.76 
1988 07 28.97  19.45  24.21 
1988 09 20.70  12.99  16.84 
1988 10 13.49   6.15   9.82 
1988 11  2.69  -2.77    .-3 
1988 12  1.17  -3.83  -1.32 
1989 02  5.41    . 1   2.71 
1989 04 17.40   8.12  12.76 
1989 05 20.70  11.50  16.10 
1989 09 20.57  13.87  17.21 
1989 11  5.51    .51   3.01 
1989 12  3.61  -1.49   1.05 
1990 01  2.30  -2.02    .13 
1990 02  6.20    .47   3.33 
1990 03 12.45   2.33   7.39 
1990 04 16.37   6.41  11.39 
1990 06 24.08  14.63  19.35 
1990 08 26.65  16.01  21.33 
1990 12  3.03   -.58   1.22 
1991 01  2.07  -2.19    .-6 
1991 02 -1.54  -6.88  -4.21 
1991 03  4.51   -.94   1.78 
1991 04 14.31   6.08  10.19 
1991 05 19.00  10.56  14.78 
1991 06 26.31  16.70  21.50 
1991 07 29.63  19.51  24.57 
1991 08 26.37  17.49  21.93 
1991 09 21.73  12.31  17.02 
1991 10 17.96  10.61  14.28 
1991 11  5.89   1.81   3.85 
1992 01   .92  -3.45  -1.26 
1992 02   .37  -4.73  -2.18 
1992 03  7.97   2.14   5.05 
1992 04 13.33   4.61   8.97 
1992 05 19.67   9.68  14.67 
1992 06 24.02  15.97  19.99 
1992 07 26.72  16.59  21.65 
1992 08 30.85  19.20  25.03 
1992 09 20.97  11.02  15.99 
1992 10 14.31   6.36  10.33 
1992 11  8.00   2.26   5.13 
1992 12  -.62  -4.42  -2.52 
1993 01  1.57  -4.31  -1.36 
1993 02  2.05  -4.55  -1.25 
1993 03  5.58   -.68   2.45 
1993 04 12.18   5.50   8.84 
1993 05 20.49  11.79  16.14 
1993 06 23.93  13.87  18.90 
1993 08 26.63  16.71  21.67 
1993 09 19.77  10.61  15.19 
1993 11  1.10  -5.45  -2.17 
1994 01  4.61   -.36   2.12 
1994 03  6.76   -.44   3.16 
1994 04 16.29   7.61  11.95 
1994 05 20.12  10.00  15.06 
1994 06 23.11  13.64  18.37 
1994 07 28.77  18.83  23.80 
1994 08 26.77  17.53  22.15 
1994 10 16.54   8.16  12.35 
1994 11  6.43    .16   3.29 
1995 08 25.19  17.71  21.45 
1995 11  4.25   -.67   1.79 
1996 08 24.67  18.60  21.63 
1996 09 16.92  11.60  14.26 
1996 10 13.92   9.14  11.53 
1998 05 18.45  12.43  15.44 
1998 06 24.16  18.08  21.12 
1998 07 26.58  19.08  22.83 
1998 08 25.98  17.94  21.96 
1998 09 20.29  14.12  17.20 
1998 10 15.12   9.76  12.44 
1998 11  4.44    .26   2.34 
1998 12   .32  -4.73  -2.20 
2000 01 -1.41  -6.66  -4.03 
2000 03  7.95  -1.05   3.44 
2000 04 19.87   7.71  13.79 
2000 05 22.69   8.25  15.47 
2000 06 25.34  13.44  19.39 
2000 07 30.04  16.58  23.31 
2000 08 29.36  15.34  22.35 
2000 09 19.67  10.81  15.24 
2000 10 15.45   4.25   9.85 
2000 11  7.99   3.07   5.53 
2001 01  4.67  -1.51   1.58 
2001 02  1.53  -4.85  -1.66 
2001 03 10.12    . 8   5.10 
2001 04 17.00   5.93  11.46 
2001 05 20.41   7.83  14.12 
2001 06 24.34  12.53  18.43 
2001 07 34.18  18.75  26.46 
2001 08 30.86  15.93  23.39 
2001 09 23.78  11.58  17.68 
2001 10 16.56   4.96  10.76 
2001 11  8.89    .57   4.73 
2001 12 -2.18  -8.64  -5.41 
2002 04 99.99   2.56 -99.99 
2003 01   .20  -5.18  -2.49 
2003 03  3.04  -2.87    . 8 
2003 04 14.14   1.74   7.94 
2003 05 27.83  11.17  19.50 
2003 06 26.65  13.18  19.91 
2003 07 27.14  16.51  21.82 
2003 08 28.60  15.26  21.93 
2003 09 22.81   9.57  16.18 
2003 10 16.35   4.55  10.45 
2003 11  7.40   2.82   5.11 
2003 12  3.76  -1.63   1.06 
2004 01  2.73  -1.86    .43 
2004 02  3.52  -3.68    .-8 
2004 03 10.57    .82   5.69 
2004 04 17.53   3.66  10.59 
2005 02 99.99  -5.62 -99.99 
2005 03 99.99  -4.25 -99.99 
2005 11 99.99   1.02 -99.99 
2006 06 99.99  15.00 -99.99 
2007 02 99.99  -3.84 -99.99 
2008 07 30.28  16.32  23.30 
