1988 01  2.64  -2.14    .25 
1988 02  4.08  -4.03    . 2 
1988 03  2.49  -8.64  -3.07 
1988 04  -.76 -13.44  -7.10 
1988 05 10.62 -21.98 -16.29 
1988 06 10.79 -21.68 -16.23 
1988 07 -7.92 -22.58 -15.25 
1988 08 11.87 -17.62 -14.75 
1988 09 10.22 -16.50 -13.36 
1988 10 -9.85 -13.38 -11.61 
1988 11 -3.53  -6.98  -5.25 
1988 12  -.36  -3.53  -1.94 
1989 01  1.62  -1.62    . 0 
1989 02   .96  -1.51   -.27 
1989 03  -.87  -3.24  -2.05 
1989 04 -3.33  -7.55  -5.44 
1989 07 -8.34 -18.36 -13.35 
1989 08 -6.47 -18.12 -12.29 
1989 09 -7.04 -15.82 -11.43 
1989 10 -4.96 -12.45  -8.71 
1989 11 -1.05  -6.82  -3.94 
1989 12  1.09  -3.11  -1.01 
1990 01  2.14  -1.43    .35 
1990 02  1.71  -1.93   -.10 
1990 03  -.45  -3.47  -1.96 
1990 04 -8.03 -12.89 -10.46 
1990 05 -6.45 -11.97  -9.21 
1990 06 -7.12 -15.77 -11.44 
1990 07 -6.52 -12.04  -9.28 
1990 08 10.91 -21.46 -16.18 
1990 09 -8.84 -19.10 -13.97 
1990 10 -7.82 -16.04 -11.93 
1990 11 -1.22  -8.12  -4.67 
1990 12  1.81  -2.62   -.40 
1991 01  3.02  -1.17    .92 
1993 01  1.30  -1.64   -.17 
1993 02   .25  -2.20   -.97 
1993 03 -1.22  -3.46  -2.34 
1993 04 -3.35  -8.28  -5.81 
1993 05 -5.52 -13.03  -9.27 
1993 06 -9.89 -16.68 -13.29 
1993 07 13.12 -21.46 -17.28 
1993 08 -7.26 -14.40 -10.83 
1993 09 -8.09 -15.97 -12.03 
1993 10 -8.25 -13.19 -10.71 
1993 11 -2.83  -6.30  -4.56 
1993 12   .58  -2.19   -.80 
1994 01  -.14  -2.67  -1.40 
1994 02  -.33  -2.69  -1.51 
1994 03 -1.85  -4.05  -2.95 
1994 04 -6.68  -8.21  -7.44 
1994 05 -7.50  -9.56  -8.53 
1994 06 -8.74 -10.92  -9.83 
1994 07 13.41 -15.65 -14.53 
1994 08 14.21 -16.07 -15.14 
1994 09 12.22 -14.71 -13.46 
1994 10 10.51 -11.65 -11.08 
1997 02  7.19   3.38   5.28 
1997 03   .-5  -3.63  -1.84 
1997 04 -1.83  -6.36  -4.09 
1997 05 -9.38 -17.01 -13.19 
1997 06 -9.28 -17.03 -13.15 
1997 07 10.75 -20.61 -15.68 
1997 08 10.70 -21.82 -16.26 
1997 09 11.79 -18.93 -15.36 
1997 10 -7.05 -12.90  -9.97 
1997 11 -2.26  -6.06  -4.16 
1997 12   .51  -2.75  -1.12 
1998 01  1.99  -1.16    .41 
1998 02  1.04  -1.16    .-6 
1998 03 -1.13  -3.85  -2.49 
1998 04 -2.59  -9.37  -5.98 
1998 05 -8.64 -15.56 -12.10 
1998 06 11.53 -18.14 -14.83 
1998 07 14.04 -20.99 -17.51 
1998 08 14.43 -22.42 -18.42 
1998 09 10.85 -17.95 -14.40 
1998 10 -6.55 -13.37  -9.96 
1998 11 -4.39 -10.67  -7.53 
1998 12   .48  -3.05  -1.28 
1999 01  1.39  -3.33   -.97 
1999 02  1.37  -2.05   -.33 
