model   build date  total produced wheel arrangement prime mover  power output
0    c - 424  1963 - 1967              92             b - b   16 - 251b           NaN
1    m - 420  1973 - 1977              92             b - b   12 - 251c           NaN
2   m - 420b         1975               8             b - b   12 - 251c           NaN
3   m - 420r  1974 - 1975               5             b - b   12 - 251c           NaN
4  m - 420tr         1972               2             b - b   12 - 251c           NaN
5  m - 420tr         1975              15             b - b   12 - 251c           NaN
6    m - 424         1980              19             b - b   16 - 251b           NaN

Table as JSON:
{"model":{"0":"c - 424","1":"m - 420","2":"m - 420b","3":"m - 420r","4":"m - 420tr","5":"m - 420tr","6":"m - 424"},"build date":{"0":"1963 - 1967","1":"1973 - 1977","2":"1975","3":"1974 - 1975","4":"1972","5":"1975","6":"1980"},"total produced":{"0":92,"1":92,"2":8,"3":5,"4":2,"5":15,"6":19},"wheel arrangement":{"0":"b - b","1":"b - b","2":"b - b","3":"b - b","4":"b - b","5":"b - b","6":"b - b"},"prime mover":{"0":"16 - 251b","1":"12 - 251c","2":"12 - 251c","3":"12 - 251c","4":"12 - 251c","5":"12 - 251c","6":"16 - 251b"},"power output":{"0":null,"1":null,"2":null,"3":null,"4":null,"5":null,"6":null}}