[['year', 'competition', 'date', 'location', 'result'], ['1979 - 1975', 'not played', 'not played', 'not played', 'not played'], ['1974', 'world group , 2nd round', '13 - 19 may', 'naples', 'loss'], ['1974', 'world group , 1st round', '13 - 19 may', 'naples', 'win'], ['1974', 'world group , consolation round', '13 - 19 may', 'naples', 'win'], ['1974', 'world group , consolation round', '13 - 19 may', 'naples', 'loss'], ['1973', 'world group , 1st round', '30 apr', 'bad homburg', 'w / o'], ['1972 - 1971', 'not played', 'not played', 'not played', 'not played'], ['1970', 'world group , 1st round', '19 may', 'freiburg', 'w / o']]
the World Group , 2nd Round was only recorded 1 time
the [ENT] was only recorded 1 time