1947   144.083     6.1      40     256   232.2      52     255    0
1948   146.730     6.0      44     312   257.3      67     158    0
1949   149.304     6.7      50     389   257.3      43     110    0
1950   152.271     8.0      54     445   284.8      41     165    0
1951   154.878    10.6      50     591   328.2      55     210    0
1952   157.553    12.5      48     695   345.4      56     157    0
1953   160.184    14.8      46     804   363.2      43     105    0
1954   163.026    16.8      47     906   361.2      54      23    0
1955   165.931    19.9      47    1065   398.0      46     225    0
1956   168.903    22.4      43    1193   419.2      53     156    0
1957   171.984    25.4      44    1348   442.8      51      78    0
1958   174.882    25.3      45    1432   444.5      63     149    0
1959   177.830    29.3      45    1722   482.8      69     310    0
1960   180.671    30.6      49    1860   507.0      67     378    0
1961   183.691    31.1      41    1951   520.1      58     135    0
1962   186.538    33.6      45    2167   560.3      43     183    0
1963   189.242    38.5      45    2374   589.2      49     145    0
1964   191.889    44.1      44    2701   628.7      53     226    0
1965   194.303    51.9      49    3142   691.0      63     253    0
1966   196.560    60.6      49    3534   749.9      54      72    0
1967   198.712    75.5      44    4260   793.5      51     255    0
1968   200.706    87.5      37    4913   865.7      54     298    0
1969   202.677   102.7      37    5943   932.3      48     152    0
1970   205.052   104.1      36    6359  1015.5      39       3    0
1971   207.661   106.4      38    6736  1063.4      41     194    0
1972   209.896   118.1      35    7565  1171.0      43     186    0
1973   211.909   126.3      33    8379  1307.0      32     217    0
1974   213.854   129.7      31    9903  1434.0      43     460    0
1975   215.973   131.7      35   10290  1598.4      29     122    0
1976   218.035   145.3      32   12104  1783.0      21      36    0
1977   220.239   156.6      32   13772  1991.0      18      75    0
1978   222.585   182.7      36   15753  2250.0      19      16    0
1979   225.055   208.9      52   18930  2508.0      18     352    1
1980   227.757   200.8      63   23317  2732.0      15       0    1
1981   230.138   198.7      98   25504  3052.6      25       4    1
1982   232.520   210.1      98   25440  3166.0      15     233    1
1983   234.799   226.9      96   27346  3405.7      22      15    1
1984   237.001   243.7      95   31437  3772.2      12       4    1
1985   239.279   270.6     106   33343  4014.9      17     197    1
1986   241.613   302.1      93   33814  4240.3      20       0    1
1987   243.915   324.5      93   37309  4526.7      31     231    1