name          city years as tallest  metres  feet  floors
0                                       carlton centre  johannesburg   1973 - present   223.0   732      50
1  kwadukuza egoli hotel tower 1 , trust bank building  johannesburg      1970 - 1973   140.0   459      31
2                               standard bank building  johannesburg      1968 - 1970   138.8   455      34
3                                 schlesinger building  johannesburg      1965 - 1968   110.0   361      21
4                                       naspers centre     cape town      1962 - 1965    93.0   205      22
5                              mutual heights building     cape town      1940 - 1962    91.0   298      18
6                            chamber of mines building  johannesburg      1936 - 1940    80.0   262      18
7                                      union buildings      pretoria      1913 - 1936    60.0   196      10

Table as JSON:
{"name":{"0":"carlton centre","1":"kwadukuza egoli hotel tower 1 , trust bank building","2":"standard bank building","3":"schlesinger building","4":"naspers centre","5":"mutual heights building","6":"chamber of mines building","7":"union buildings"},"city":{"0":"johannesburg","1":"johannesburg","2":"johannesburg","3":"johannesburg","4":"cape town","5":"cape town","6":"johannesburg","7":"pretoria"},"years as tallest":{"0":"1973 - present","1":"1970 - 1973","2":"1968 - 1970","3":"1965 - 1968","4":"1962 - 1965","5":"1940 - 1962","6":"1936 - 1940","7":"1913 - 1936"},"metres":{"0":223.0,"1":140.0,"2":138.8,"3":110.0,"4":93.0,"5":91.0,"6":80.0,"7":60.0},"feet":{"0":732,"1":459,"2":455,"3":361,"4":205,"5":298,"6":262,"7":196},"floors":{"0":50,"1":31,"2":34,"3":21,"4":22,"5":18,"6":18,"7":10}}