date of opinion poll                              conductor  sample size  for against undecided
0     27 september 2009  sunday independent / quantum research         1000  68%     17%       15%
1     26 september 2009           red c / sunday business post         1000  55%     27%       18%
2     25 september 2009               tns / mrbi / irish times         1000  48%     33%       19%
3     18 september 2009             millward brown / lansdowne         1000  53%     26%       21%
4     12 september 2009  quantum research / sunday independent         1000  63%     15%       22%
5     12 september 2009                           red c / post         1000  52%     25%       23%
6      4 september 2009                             tns / mrbi         1000  46%     29%       25%
7           28 may 2009                             tns / mrbi         2000  54%     28%       18%
8           13 may 2009                             tns / mrbi         2000  52%     29%       19%
9         25 april 2009                       quantum research          500  54%     24%       22%
10      28 january 2009                           red c / post         1001  58%     28%       14%
11      23 january 2009                              lansdowne         1000  58%     29%       12%

Table as JSON:
{"date of opinion poll":{"0":"27 september 2009","1":"26 september 2009","2":"25 september 2009","3":"18 september 2009","4":"12 september 2009","5":"12 september 2009","6":"4 september 2009","7":"28 may 2009","8":"13 may 2009","9":"25 april 2009","10":"28 january 2009","11":"23 january 2009"},"conductor":{"0":"sunday independent \/ quantum research","1":"red c \/ sunday business post","2":"tns \/ mrbi \/ irish times","3":"millward brown \/ lansdowne","4":"quantum research \/ sunday independent","5":"red c \/ post","6":"tns \/ mrbi","7":"tns \/ mrbi","8":"tns \/ mrbi","9":"quantum research","10":"red c \/ post","11":"lansdowne"},"sample size":{"0":1000,"1":1000,"2":1000,"3":1000,"4":1000,"5":1000,"6":1000,"7":2000,"8":2000,"9":500,"10":1001,"11":1000},"for":{"0":"68%","1":"55%","2":"48%","3":"53%","4":"63%","5":"52%","6":"46%","7":"54%","8":"52%","9":"54%","10":"58%","11":"58%"},"against":{"0":"17%","1":"27%","2":"33%","3":"26%","4":"15%","5":"25%","6":"29%","7":"28%","8":"29%","9":"24%","10":"28%","11":"29%"},"undecided":{"0":"15%","1":"18%","2":"19%","3":"21%","4":"22%","5":"23%","6":"25%","7":"18%","8":"19%","9":"22%","10":"14%","11":"12%"}}