1976 1 1 0.07 1976 2 2 0.04 1976 3 3 1.02 1976 4 4 0.39 1976 5 5 0.19 1976 6 6 0.53 1976 7 7 0.11 1976 8 8 0.34 1976 9 9 0.64 1976 10 10 0.18 1976 11 11 0.23 1976 12 12 0.33 1977 1 13 0.47 1977 2 14 0.77 1977 3 15 0.20 1977 4 16 0.08 1977 5 17 0.87 1977 6 18 1.81 1977 7 19 1.49 1977 8 20 1.51 1977 9 21 5.51 1977 10 22 3.48 1977 11 23 1.78 1977 12 24 1.44 1978 1 25 2.06 1978 2 26 13.75 1978 3 27 5.09 1978 4 28 11.11 1978 5 29 9.60 1978 6 30 7.16 1978 7 31 10.83 1978 8 32 2.44 1978 9 33 8.01 1978 10 34 3.05 1978 11 35 4.16 1978 12 36 3.02 1979 1 37 7.50 1979 2 38 13.47 1979 3 39 7.62 1979 4 40 8.44 1979 5 41 9.68 1979 6 42 11.20 1979 7 43 9.80 1979 8 44 11.73 1979 9 45 13.76 1979 10 46 13.99 1979 11 47 7.45 1979 12 48 4.16 1980 1 49 7.98 1980 2 50 6.06 1980 3 51 4.47 1980 4 52 10.72 1980 5 53 3.59 1980 6 54 4.65 1980 7 55 3.96 1980 8 56 8.94 1980 9 57 8.68 1980 10 58 9.35 1980 11 59 17.01 1980 12 60 8.21 1981 1 61 3.35 1981 2 62 9.37 1981 3 63 10.47 1981 4 64 24.96 1981 5 65 13.14 1981 6 66 7.31 1981 7 67 5.60 1981 8 68 5.15 1981 9 69 8.53 1981 10 70 4.10 1981 11 71 6.39 1981 12 72 7.11 1982 1 73 8.19 1982 2 74 6.38 1982 3 75 9.96 1982 4 76 5.87 1982 5 77 4.64 1982 6 78 14.86 1982 7 79 17.59 1982 8 80 9.99 1982 9 81 11.65 1982 10 82 6.05 1982 11 83 2.35 1982 12 84 12.32 1983 1 85 1.72 1983 2 86 0.29 1983 3 87 0.58 1983 4 88 0.72 1983 5 89 2.67 1983 6 90 2.46 1983 7 91 1.67 1983 8 92 1.28 1983 9 93 0.93 1983 10 94 4.67 1983 11 95 0.21 1983 12 96 0.64 1984 1 97 3.59 1984 2 98 5.44 1984 3 99 2.46 1984 4 100 3.14 1984 5 101 3.78 1984 6 102 0.86 1984 7 103 0.61 1984 8 104 1.23 1984 9 105 0.45 1984 10 106 0.22 1984 11 107 1.14 1984 12 108 0.50 1985 1 109 0.53 1985 2 110 0.29 1985 3 111 0.32 1985 4 112 2.83 1985 5 113 1.61 1985 6 114 0.43 1985 7 115 0.36 1985 8 116 0.25 1985 9 117 0.05 1985 10 118 2.10 1985 11 119 0.16 1985 12 120 0.53