date released                    institute social democratic        socialist green - communist people 's party   lead
0     october 1 , 1995             election results    34.1% 88 seats  43.8% 112 seats     8.6% 15 seats   9.1% 15 seats   9.7%
1  september 23 , 1995                       metris             32.0%            42.0%             10.0%            8.0%  10.0%
2  september 23 , 1995                    euroteste             35.0%            39.0%              9.0%           10.0%   4.0%
3  september 23 , 1995                 euroexpansão             32.7%            44.5%             11.5%            6.9%  11.8%
4  september 23 , 1995  universidade catã cubiclica             35.0%            40.0%              9.0%           10.0%   5.0%
5  september 22 , 1995                        ipsos             35.0%            41.0%              9.0%            9.0%   6.0%
6  september 21 , 1995                     marktest             33.0%            42.0%             10.0%            9.0%   9.0%
7  september 16 , 1995                       compta             39.0%            40.0%             12.0%            8.0%   1.0%
8     october 6 , 1991                1991 election   50.6% 135 seats   29.1% 72 seats     8.8% 17 seats    4.4% 5 seats  21.5%

Table as JSON:
{"date released":{"0":"october 1 , 1995","1":"september 23 , 1995","2":"september 23 , 1995","3":"september 23 , 1995","4":"september 23 , 1995","5":"september 22 , 1995","6":"september 21 , 1995","7":"september 16 , 1995","8":"october 6 , 1991"},"institute":{"0":"election results","1":"metris","2":"euroteste","3":"euroexpansão","4":"universidade catã cubiclica","5":"ipsos","6":"marktest","7":"compta","8":"1991 election"},"social democratic":{"0":"34.1% 88 seats","1":"32.0%","2":"35.0%","3":"32.7%","4":"35.0%","5":"35.0%","6":"33.0%","7":"39.0%","8":"50.6% 135 seats"},"socialist":{"0":"43.8% 112 seats","1":"42.0%","2":"39.0%","3":"44.5%","4":"40.0%","5":"41.0%","6":"42.0%","7":"40.0%","8":"29.1% 72 seats"},"green - communist":{"0":"8.6% 15 seats","1":"10.0%","2":"9.0%","3":"11.5%","4":"9.0%","5":"9.0%","6":"10.0%","7":"12.0%","8":"8.8% 17 seats"},"people 's party":{"0":"9.1% 15 seats","1":"8.0%","2":"10.0%","3":"6.9%","4":"10.0%","5":"9.0%","6":"9.0%","7":"8.0%","8":"4.4% 5 seats"},"lead":{"0":"9.7%","1":"10.0%","2":"4.0%","3":"11.8%","4":"5.0%","5":"6.0%","6":"9.0%","7":"1.0%","8":"21.5%"}}