YEAR,MONTH,CM
1956,2,6.8
1956,3,15
1956,4,22.6
1956,5,40.6
1956,6,38.8
1956,7,19.1
1956,8,41.5
1956,9,20.3
1956,10,18.2
1956,11,24.9
1956,12,35.9
1957,1,17.5
1957,2,8.4
1957,3,4.2
1957,4,6.8
1957,5,12.6
1957,6,32.7
1957,7,25.2
1957,8,22.8
1957,9
1957,10
1957,11
1957,12
1958,1
1958,2
1958,3
1958,4
1958,5,68.6
1958,6,45.5
1958,7,47.4
1958,8,29
1958,9,27.2
1958,10,28.2
1958,11,25.7
1958,12,11
1959,1,29.5
1959,2,12.6
1959,3,6.4
1959,4,24.1
1959,5,55.8
1959,6,15.8
1959,7,23.9
1959,8,20.3
1959,9,16.5
1959,10,22.2
1959,11,14.6
1959,12,10.3
1960,1,5.5
1960,2,16.9
1960,3,7.2
1960,4,29.3
1960,5,17.4
1960,6,24.2
1960,7,30.3
1960,8,30.2
1960,9,42.6
1960,10,15.8
1960,11,12.4
1960,12,40.9
1961,1,8.2
1961,2,5.9
1961,3,1.9
1961,4,27
1961,5,21.3
1961,6,26.3
1961,7,25.1
1961,8,33.5
1961,9,5.4
1961,10,28.9
1961,11,40.5
1961,12,65.8
1962,1,16.6
1962,2,9.5
1962,3,21.8
1962,4,13.6
1962,5,39.6
1962,6,68
1962,7,14.3
1962,8,11.6
1962,9,17.8
1962,10,1.6
1962,11,12.2
1962,12,18.6
1963,1,21.4
1963,2,16.9
1963,3,24.6
1963,4,14.5
1963,5,40.9
1963,6,31.5
1963,7,28.8
1963,8,26.1
1963,9,36.5
1963,10,6.6
1963,11,23.5
1963,12,3.3
1964,1,18.1
1964,2,6.5
1964,3
1964,4,24.6
1964,5,10.8
1964,6,23
1964,7,34.2
1964,8,30.3
1964,9,21.3
1964,10,19.6
1964,11,13.8
1964,12
1965,1,28.4
1965,2,9.4
1965,3,8.5
1965,4,12.3
1965,5
1965,6,24.5
1965,7,27.3
1965,8,59.5
1965,9,18.2
1965,10,9.8
1965,11
1965,12,41.4
1966,1,19.2
1966,2,2.6
1966,3
1966,4
1966,5
1966,6
1966,7,50.5
1966,8,22
1966,9,28.2
1966,10,25.3
1966,11,24.2
1966,12,38.6
1967,1,14.9
1967,2,14.2
1967,3,7.9
1967,4,8.5
1967,5,19.7
1967,6,25.8
1967,7,37.3
1967,8,22.3
1967,9,11.9
1967,10,10.4
1967,11,22.4
1967,12,15.3
1968,1,13.5
1968,2,9.5
1968,3,7.8
1968,4,5.1
1968,5,29.1
1968,6,30.7
1968,7,45.2
1968,8,28.6
1968,9,11.7
1968,10,8
1968,11,48.6
1968,12,22.3
1969,1,37.4
1969,2,19.7
1969,3,28.7
1969,4
1969,5
1969,6
1969,7,35.7
1969,8,24
1969,9,38.6
1969,10,25
1969,11,70.7
1969,12,18.2
1970,1,29.7
1970,2,7.6
1970,3,5.8
1970,4,13.2
1970,5,58.6
1970,6,47.2
1970,7,25.9
1970,8,37.7
1970,9,24.1
1970,10,99.7
1970,11,38.1
1970,12,53.7
1971,1,41.2
1971,2,17.3
1971,3,7.2
1971,4,12.6
1971,5,17.5
1971,6
1971,7,12.3
1971,8,41.6
1971,9,1.1
1971,10,17.8
1971,11,8.7
1971,12,13
1972,1,11.5
1972,2,3.3
1972,3,4
1972,4,3.5
1972,5,3.2
1972,6,7.5
1972,7,12.5
1972,8,10.5
1972,9,5.3
1972,10
1972,11
1972,12,11.1
1973,1,13.4
1973,2,2.6
1973,3,7.1
1973,4,32.3
1973,5,3.6
1973,6,19.7
1973,7,4.2
1973,8,20.6
1973,9,32.7
1973,10,2
1973,11,6.2
1973,12,11
1974,1,24
1974,2,3.8
1974,3,9.2
1974,4,10
1974,5,5.8
1974,6,4
1974,7,13.9
1974,8,25
1974,9,14.8
1974,10,41.9
1974,11,5.7
1974,12,2
1975,1,13.2
1975,2,1.7
1975,3,4.3
1975,4,4.9
1975,5,4.1
1975,6,0.9
1975,7,2.4
1975,8
1975,9,32.1
1975,10,14.2
1975,11,30.1
1975,12,53.1
1976,1,4.6
1976,2,19.2
1976,3,1.8
1976,4,2.8
1976,5,2.6
1976,6,30.1
1976,7,12
1976,8,5.8
1976,9,7.2
1976,10,8
1976,11,6.5
1976,12,2.7
1977,1,9.2
1977,2,12.2
1977,3,20.9
1977,4,51.2
1977,5,32.1
1977,6,34.7
1977,7,41.4
1977,8,52.7
1977,9,16
1977,10,22.5
1977,11
1977,12,6.5
1978,1,15.2
1978,2,13.9
1978,3,26.5
1978,4
1978,5,14
1978,6,14.5
1978,7,13.1
1978,8,19.5
1978,9,9.5
1978,10,23
1978,11,41.3
1978,12,17.1
1979,1,22.7
1979,2,34.1
1979,3,20
1979,4,27.8
1979,5,45.9
1979,6,26.2
1979,7,21.4
1979,8,26.7
1979,9,12.3
1979,10,10.9
1979,11,42.6
1979,12,20.8
1980,1,12.8
1980,2,15.3
1980,3,15.2
1980,4,16.6
1980,5,22.3
1980,6,16.7
1980,7,24.4
1980,8,17.1
1980,9,18.8
1980,10,18.3
1980,11,13.2
1980,12,14.2
1981,1,17.9
1981,2,19.4
1981,3,15.2
1981,4,34.1
1981,5,39.5
1981,6,21.9
1981,7,38.2
1981,8,40.5
1981,9
1981,10,18.5
1981,11,14.1
1981,12,58.3
1982,1,15.5
1982,2,41.9
1982,3,5.8
1982,4,11
1982,5,27.9
1982,6,10.3
1982,7,43.4
1982,8,27.8
1982,9,32.7
1982,10,12
1982,11,20
1982,12,21.2
1983,1,2.7
1983,2,3
1983,3,8.6
1983,4,14.7
1983,5,19
1983,6,24.7
1983,7,24.1
1983,8,37.1
1983,9,19.4
1983,10
1983,11
1983,12
1983,1
1984,2,24.8
1984,3,5.3
1984,4,2.4
1984,5,24.3
1984,6,22.9
1984,7,20.8
1984,8,14.7
1984,9,26.8
1984,10,34.3
1984,11,29
1984,12
1985,1
1985,2
1985,3
1985,4
1985,5
1985,6
1985,7
1985,8
1985,9
1985,10
1985,11
1985,12
1986,1
1986,2
1986,3
1986,4
1986,5
1986,6
1986,7
1986,8
1986,9
1986,10
1986,11
1986,12
1987,1
1987,2
1987,3
1987,4
1987,5
1987,6
1987,7
1987,8
1987,9
1987,10
1987,11
1987,12,27.3