class                              operator  number   year built  cars per set     unit numbers
0  class 253                     br western region      27  1975 - 1977             9  253001 - 253027
1  class 253                     br western region      13  1978 - 1979             9  253028 - 253040
2  class 253                      br cross country      18  1981 - 1982             9  253041 - 253058
3  class 254  br eastern region br scottish region      32  1977 - 1979            10  254001 - 254032
4  class 254  br eastern region br scottish region       4         1982            10  254033 - 254037

Table as JSON:
{"class":{"0":"class 253","1":"class 253","2":"class 253","3":"class 254","4":"class 254"},"operator":{"0":"br western region","1":"br western region","2":"br cross country","3":"br eastern region br scottish region","4":"br eastern region br scottish region"},"number":{"0":27,"1":13,"2":18,"3":32,"4":4},"year built":{"0":"1975 - 1977","1":"1978 - 1979","2":"1981 - 1982","3":"1977 - 1979","4":"1982"},"cars per set":{"0":9,"1":9,"2":9,"3":10,"4":10},"unit numbers":{"0":"253001 - 253027","1":"253028 - 253040","2":"253041 - 253058","3":"254001 - 254032","4":"254033 - 254037"}}