1990 08 -9.25 -18.99 -14.12 
1990 09 21.74 -31.51 -26.62 
1990 10 26.73 -36.53 -31.63 
1990 11 24.72 -33.25 -28.98 
1990 12 31.26 -42.32 -36.79 
1991 01 35.21 -45.64 -40.42 
1991 02 30.97 -41.24 -36.10 
1991 03 32.08 -44.29 -38.18 
1991 04 28.51 -42.51 -35.50 
1991 05 16.46 -28.37 -22.42 
1991 06 -7.36 -18.95 -13.16 
1991 07 -6.74 -16.65 -11.69 
1991 08 12.19 -22.48 -17.33 
1991 09 19.15 -31.87 -25.51 
1991 10 27.05 -36.98 -32.01 
1991 11 35.34 -44.93 -40.13 
1991 12 33.43 -44.21 -38.82 
1992 01 34.41 -46.83 -40.62 
1992 02 36.72 -47.52 -42.12 
1992 03 33.68 -44.65 -39.16 
1992 04 26.99 -43.83 -35.41 
1992 05 19.81 -34.45 -27.13 
1992 06 12.28 -22.21 -17.24 
1992 07 -8.70 -19.90 -14.29 
1992 08 13.19 -25.65 -19.42 
1992 09 21.17 -31.72 -26.44 
1992 10 20.06 -31.16 -25.61 
1992 11 31.95 -41.20 -36.57 
1992 12 39.75 -49.24 -44.49 
1993 01 39.81 -49.60 -44.70 
1993 02 36.49 -48.34 -42.41 
1993 03 33.89 -42.91 -38.40 
1993 04 25.86 -36.28 -31.07 
1993 09 14.83 -24.14 -19.48 
1993 10 21.83 -32.75 -27.29 
1993 11 29.40 -39.86 -34.63 
1993 12 38.65 -46.09 -42.37 
1994 01 38.93 -46.57 -42.75 
1994 02 32.79 -40.71 -36.75 
1994 03 34.82 -45.41 -40.11 
1994 04 22.29 -32.88 -27.58 
1994 08 -9.95 -19.77 -14.86 
1994 09 20.04 -29.43 -24.73 
1995 04 21.03 -35.66 -28.34 
1995 05 14.13 -28.86 -21.49 
1995 06 -8.68 -18.56 -13.62 
1995 07 -6.11 -15.85 -10.98 
1995 08 -9.74 -19.03 -14.38 
1995 09 18.91 -29.52 -24.21 
1995 11 19.25 -30.20 -24.72 
1996 01 28.10 -37.81 -32.95 
1996 02 29.92 -39.02 -34.47 
1996 03 24.69 -36.21 -30.45 
1996 04 21.81 -36.50 -29.15 
1996 05 14.41 -28.38 -21.39 
1996 06 -9.66 -21.63 -15.64 
