1976 09 11.74   8.66  10.20 
1976 10  7.22   5.09   6.15 
1976 11  4.38   2.17   3.27 
1976 12   .66  -2.29   -.81 
1977 01  -.31  -2.28  -1.29 
1977 02 -3.22  -5.82  -4.52 
1977 03  2.55  -1.43    .56 
1977 04  3.33   -.44   1.44 
1977 05  9.35   4.05   6.70 
1977 06 14.77   9.39  12.08 
1977 07 14.04  10.75  12.39 
1977 08 14.58  12.44  13.51 
1977 10  8.92   6.14   7.53 
1977 11  5.47   2.70   4.08 
1978 01   .55  -1.99   -.72 
1978 02 -3.36  -6.57  -4.96 
1978 04  2.98   -.90   1.04 
1978 06 15.18  10.28  12.73 
1978 07 14.54  11.84  13.19 
1979 09 12.02   9.34  10.68 
1979 11  3.89   1.30   2.59 
1981 10  7.16   4.69   5.93 
1981 11  2.46   -.12   1.17 
1981 12 -2.02  -5.32  -3.67 
1982 02  -.50  -4.60  -2.55 
1982 03  2.60   -.93    .83 
1982 04  4.73    .43   2.58 
1982 05  8.89   4.28   6.58 
1982 06 11.53   8.08   9.80 
1982 07 17.40  13.67  15.53 
1982 08 17.71  13.71  15.71 
1982 09 13.18   9.51  11.34 
1982 10  7.76   5.23   6.49 
1983 01  2.24   -.92    .66 
1983 02  -.42  -3.76  -2.08 
1983 03   .42  -2.19   -.88 
1983 04  2.93    .40   1.66 
1983 05  9.04   5.63   7.33 
1983 06 14.37   9.80  12.08 
1983 07 17.62  13.92  15.77 
1983 10  8.55   5.35   6.95 
1983 11  3.56    .58   2.07 
1983 12  1.13  -1.66   -.26 
1984 01 -1.20  -4.08  -2.64 
1984 02  -.70  -2.77  -1.73 
1984 03  -.61  -3.67  -2.14 
1984 04  5.13   1.01   3.07 
1984 05  8.89   4.85   6.87 
1984 08 17.44  14.23  15.83 
1984 09 11.52   9.39  10.45 
1984 10  9.59   7.18   8.38 
1984 11  5.13   2.57   3.85 
1984 12  2.20    .13   1.16 
1985 01 -5.14  -8.35  -6.74 
1985 03  -.99  -5.05  -3.02 
1985 04  1.99  -2.32   -.16 
1985 05  7.00   1.95   4.47 
1985 08 16.62  13.10  14.86 
1985 09 11.02   7.82   9.42 
1985 10  9.97   6.04   8.01 
1985 11  2.32    .-6   1.13 
1985 12 -1.59  -4.55  -3.07 
1986 01 -3.41  -7.60  -5.50 
1986 02 -5.65 -11.10  -8.37 
1986 03  2.34  -1.47    .43 
1986 04  2.20   -.96    .62 
1986 05 11.90   6.42   9.16 
1986 07 17.14  13.73  15.43 
1986 08 13.95  11.61  12.78 
1986 09 10.82   7.84   9.33 
1986 12   .65  -2.62   -.98 
1987 01 -6.64 -10.52  -8.58 
1987 02 -1.44  -6.21  -3.82 
1987 03 -3.08  -6.71  -4.89 
1987 04  5.40    .18   2.79 
1987 05  6.00   2.33   4.17 
1987 06 10.76   7.40   9.08 
1987 07 16.08  12.86  14.46 
1987 08 13.79  10.89  12.34 
1987 09 11.41   9.06  10.23 
1987 10  9.31   7.01   8.16 
1987 11  4.07   1.63   2.85 
1987 12  1.44  -1.57    .-6 
1988 02   .15  -1.83   -.84 
1988 03  -.85  -3.08  -1.96 
1988 04  4.08    .-1   2.03 
1988 05 11.26   5.50   8.38 
1988 06 14.69  10.44  12.56 
1988 07 19.43  16.11  17.77 
1988 08 15.82  13.22  14.52 
1988 09 14.67  11.16  12.91 
1988 12   .39  -2.87  -1.24 
1989 01  3.40    .57   1.98 
1989 02  3.60    .78   2.19 
1989 04  3.89   1.22   2.55 
1989 05 13.47   6.89  10.18 
1989 07 17.94  14.07  16.00 
1989 08 16.15  13.47  14.81 
1989 09 14.70  11.31  13.00 
1989 10  8.95   6.32   7.63 
1989 11  5.18   2.42   3.80 
1989 12   .56  -2.72  -1.08 
1990 01  1.20  -2.18   -.49 
1990 02  3.73    .92   2.32 
1990 03  5.29   1.31   3.30 
1990 04  7.01   2.33   4.67 
1990 05 11.95   6.58   9.26 
1990 06 13.93  10.39  12.16 
1990 07 15.92  13.10  14.51 
1990 08 17.92  14.66  16.29 
1990 09 12.52  10.06  11.29 
1990 10 10.18   6.81   8.50 
1990 11  4.27   1.62   2.94 
1990 12  3.17    .46   1.81 
1991 02  -.82  -3.23  -2.02 
1991 03  2.97   -.45   1.26 
1991 04  6.04   1.72   3.88 
1991 05  8.54   4.39   6.46 
1991 06 12.04   7.91   9.97 
1991 07 19.09  14.94  17.01 
1991 09 14.07   9.97  12.02 
1991 10  8.79   6.05   7.42 
1991 11  5.79   3.09   4.44 
1991 12  3.38    .65   2.01 
1992 01  3.42    .-6   1.68 
1992 02  2.35   -.98    .68 
1992 03  3.42    .63   2.02 
1992 04  2.75    .20   1.47 
