ship  built   in service for nal                       type tonnage
0   sskristianiafjord   1913            1913 - 17                ocean liner     grt
1      ssbergensfjord   1913            1913 - 40                ocean liner     grt
2    ssstavangerfjord   1917  1917 - 40 1945 - 64                ocean liner     grt
3  msoslofjord (1938)   1938            1938 - 40                ocean liner     grt
4  msoslofjord (1949)   1949            1949 - 67                ocean liner     grt
5      msbergensfjord   1956            1956 - 71                ocean liner     grt
6         mssagafjord   1965            1965 - 83  ocean liner / cruise ship     grt
7       ms vistafjord   1973            1973 - 83                cruise ship     grt

Table as JSON:
{"ship":{"0":"sskristianiafjord","1":"ssbergensfjord","2":"ssstavangerfjord","3":"msoslofjord (1938)","4":"msoslofjord (1949)","5":"msbergensfjord","6":"mssagafjord","7":"ms vistafjord"},"built":{"0":1913,"1":1913,"2":1917,"3":1938,"4":1949,"5":1956,"6":1965,"7":1973},"in service for nal":{"0":"1913 - 17","1":"1913 - 40","2":"1917 - 40 1945 - 64","3":"1938 - 40","4":"1949 - 67","5":"1956 - 71","6":"1965 - 83","7":"1973 - 83"},"type":{"0":"ocean liner","1":"ocean liner","2":"ocean liner","3":"ocean liner","4":"ocean liner","5":"ocean liner","6":"ocean liner \/ cruise ship","7":"cruise ship"},"tonnage":{"0":"grt","1":"grt","2":"grt","3":"grt","4":"grt","5":"grt","6":"grt","7":"grt"}}