 
        195211 1             1954 2                                                            TNT    
         
        19499                                            1950 1                            1952 11 1                       1954 2                                                                                                                               
          
                                                                                                                                           
         
                                                                                                                                                   1000                                                         
                           1908 1 15                                                                                    1930          20  30                       1949                                      1952 11                                              1995                         
                                   1953 8 12         1957 5      1958 8                                                  