1987 05 14.22 -26.53 -20.37 
1987 06 -6.18 -16.78 -11.48 
1987 07 -7.18 -16.77 -11.97 
1987 08 -8.79 -21.96 -15.37 
1987 09 19.54 -31.61 -25.58 
1987 10 31.31 -39.91 -35.61 
1987 11 28.61 -38.88 -33.74 
1987 12 31.61 -43.85 -37.73 
1988 01 41.88 -50.17 -46.02 
1988 02 35.34 -46.37 -40.86 
1988 03 30.21 -42.49 -36.34 
1988 04 23.61 -41.71 -32.66 
1988 05 12.40 -26.70 -19.54 
1988 06 10.73 -21.33 -16.02 
1988 07 -4.80 -18.34 -11.57 
1988 08 -9.77 -23.54 -16.65 
1988 09 20.12 -31.93 -26.03 
1988 10 26.23 -37.02 -31.62 
1988 11 28.51 -38.16 -33.34 
1988 12 38.21 -49.61 -43.91 
1989 01 38.93 -48.22 -43.58 
1989 02 40.25 -50.16 -45.20 
1989 03 34.99 -49.04 -42.01 
1989 04 20.50 -41.02 -30.76 
1989 05 18.95 -36.86 -27.91 
