[['club', 'played', 'won', 'drawn', 'lost', 'points for', 'points against', 'tries for', 'tries against', 'try bonus', 'losing bonus', 'points'], ['club', 'played', 'won', 'drawn', 'lost', 'points for', 'points against', 'tries for', 'tries against', 'try bonus', 'losing bonus', 'points'], ['pontyberem rfc', '22', '21', '0', '1', '614', '223', '84', '26', '12', '1', '97'], ['aberystwyth rfc', '22', '18', '1', '3', '677', '277', '100', '32', '12', '0', '86'], ['crymych rfc', '22', '17', '1', '4', '656', '239', '88', '27', '11', '2', '83'], ['cardigan rfc', '22', '14', '0', '8', '631', '221', '94', '20', '11', '3', '70'], ['laugharne rfc', '22', '13', '1', '8', '603', '342', '86', '47', '11', '5', '70'], ['newcastle emlyn rfc', '22', '11', '0', '11', '469', '422', '61', '54', '6', '2', '52'], ['llanybydder rfc 1', '22', '11', '0', '11', '499', '348', '71', '39', '8', '5', '49'], ['haverfordwest rfc', '22', '8', '1', '13', '391', '467', '51', '59', '3', '3', '40'], ['lampeter town rfc', '22', '8', '0', '14', '375', '616', '41', '91', '3', '2', '37'], ['llanelli wanderers rfc', '22', '6', '0', '16', '347', '694', '48', '99', '5', '2', '31'], ['amman united rfc', '22', '2', '0', '20', '237', '821', '29', '117', '2', '4', '14'], ['tumble rfc', '22', '1', '0', '21', '184', '1013', '20', '162', '0', '2', '6']]
there are 2 team with 50% win per centage
there are 2 team with 50% win per centage