         
           
      
      1968   3   1969   7   
    1971   3   1974   12   
    1974   12   1976   10   
       1968   3   1960   10   
    1969   7   1971   3   
    1969   7   1976   10   
    1971   3   1976   5   
     1973   4   1976   3   
    1975   12   1976   10   
    1975   12   1976   10   

          
      
        1968   2   1969   
      1971   3   1976   10   
      1968   2   1974   2   
    1968   2   1968   4   
    1969   7   1971   3   
     1972   7   1976   10   
    1969   10   1976   10   
      1974   9   1975   
    1975   11   1976   10   
    1975   12   1976   10   
    1975   12   1976   10   

           
     
        1968   3  1968   11   1969   6  1971   3   
      1971   2   1976   4   
    1976   4   1976   10   
        1968   3   1969   10   
    1969   10   1974   12   
    1972   10   1976   10   
    1973   8   1975   
    1974   2   1976   10   
      1975   12   1976   10   
    1975   6   1976   10   
    1975   12   1976   10   
        1976   8   1976   10   

           
      
        1968   5   1969   8   
      1969   9   1971   2   
    1973   8   1976   10   
         1968   5   1969   
    1968   5   1969   9   
     1969   10   1975   12   
        1969   9   1970   
    1971   3   1976   10   
    1971   3   1975   12   
    1972   4   1973   8   
    1974   5   1976   10   
    1975   12   1976   10   
    1975   12   1976   10   
    1975   12   1976   10   
      1976     1976  10   

        
     
      1968   3   1974   12   
    1974   12   1976   10   
         1968   3   1969   2   
    1974   12   1976   10   
    1969   10   1971   3   
      1969   11   1972   7   
      1971   3   1976   10   
    1972   4   1973   
    1972   7   1975   
        1974   9   1976   10   
    1974   9   1976   10   
    1975   12   1976   10   
    1976   7   1976   10   

           
     
      1968   4   1968   10   
    1969   7   1970   
    1970   8   1973   8   
      1973   8   1975   12   
      1975   12   1976   10   
       1968   4   1969   1975   6  1976   10   
    1968   4   1969   
    1969   2   1970   
    1970   8   1973   8   
      1971   2   1974   2   
    1972   4   1974   7   
    1973   6   1976   10   
    1974   8   1976   10   
      1975   12   1976   10   
    1975   12   1976   10   
    1974   12   1976   10   

           
     
          1968   5   1975   12   
      1975   12   1976   10   
           1968   5   1969   9   
      1968   5   1970   6   
    1969   9   1971   2   
    1969   9   1974   3   
    1971   2   1975   12   
    1973   4   1974   
    1975   12   1976   10   
    1975   1   1976   3   
      1975   12   1976   10   
      1975   12   1976   10   
      1975   12   1976   10   

                

1979               1984            1986              1987          23              
1983                                                                     

          
     
         1976   10   1978   9   
      1978   9   1979   10   
    1979   10   1980   3   
      1980   11   1983   7   
      1983   7   1984   11   
        1984   10   1985   1   
        1985   3   1987   12   
          1976   10   1978   9   
    1976   10   1979   10   
    1976   10   1979   6   
    1979   2   1983   6   
      1979   10   1980   11   
    1983   8   1985   3   
      1985   10   1987   12   
      1987   5   1987   12   

           
      
       1976   10   1979   10   
    1979   10   1980   3   
    1980   11   1983   12   
    1983   7   1987   12   
        1976   10   1979   10   
    1976   
    1976   10   1979  10   
    1980   7   1980   11   
    1987   5   1987   12   

          
      
           1976   10   1977   9   
    1977   9   1979   10   
      1979   10   1980   3   
    1980   11   1984   11   
      1987   5   1987   12   
        1976   10   1977   9   
      1976   10   1980   4   
    1976   10   1980   4   
      1976   10   1980   4   
    1976   10   1979   5   
      1980   9  1986   12   
    1983   7   1987   12   
      1983   7   1985   10   
    1987   12   