12431000 1930     128     675   1 19300205    63.0   1 19300724
12431000 1931     128     260   3             65.0   5         
12431000 1932     343    1670   1 19320227    80.0   1 19311001
12431000 1948     437    1620   1 19480524     129   1 19471001
12431000 1949     346    1520   1 19490322     127   1 19490821
12431000 1950     391    2090   1 19500318     140   6         
12431000 1951     394    1400   1 19510211     140   3         
12431000 1952     418    1520   1 19520329     164   1 19520926
12431000 1953     318     900   1 19530428     134   2         
12431000 1954     286     977   2              131   3         
12431000 1955     262    1220   1 19550423     126   3         
12431000 1956     435    1680   1 19560326     144   3         
12431000 1957     283    1680   1 19570227     120   1 19570825
12431000 1958     366    1870   1 19580226     133   2         
12431000 1959     367    1650   1 19590125     130   1 19590103
12431000 1960     393    1900   1 19600207     147   1 19591116
12431000 1961     443    1700   1 19610212     143   4         
12431000 1962     304    1180   1 19620326     133   4         
12431000 1963     279    1720   1 19630205     127   5         
12431000 1964     254     900   1 19640402     138   5         
12431000 1965     331    1180   1 19650421     120   3         
12431000 1966     225     984   1 19660310     102   1 19660801
12431000 1967     306    1350   1 19670129     111   2         
12431000 1968     212     910   1 19680203    92.0   4         
12431000 1969     363    1820   1 19690401     129   3         
12431000 1970     289    2800   1 19700217     121   1 19700819
12431000 1971     297    1050   2              123   1 19710821
12431000 1972     259     945   1 19720314     129   3         
12431000 1973     190    1480   1 19730117    81.0   4         
12431000 1974     554    2700   1 19740116     129   2         
12431000 1975     375    1730   1 19750426     158   1 19750815
12431000 1976     302    1100   1 19751227     150   4         
12431000 1977     155     413   1 19770211    92.0   3         
12431000 1978     263     905   1 19771214     116   2         
12431000 1979     212     853   1 19790308    91.0   1 19790813
12431000 1980     207     667   1 19800229     100   1 19800816
12431000 1981     245     727   1 19810220     108   3         
12431000 1982     312    1550   1 19820302     118   2         
12431000 1983     382    1530   1 19830310     139   3         
12431000 1984     417    1420   1 19840322     163   3         
12431000 1985     249     791   1 19850404     112   1 19850731
12431000 1986     235     891   1 19860308     111   3         
12431000 1987     226     896   1 19870314     114   2         
12431000 1988     187     481   1 19880407    91.0   2