Voting: Definitely Decided or May Change Mind?

Q Have you definitely decided to vote for the ... party or is there a chance you may change your mind before you vote?

20 January 2020

Q Have you definitely decided to vote for the… party or is there a chance you may change your mind before you vote?

	Definitely decided	May change mind	Don't know
Base: All giving a voting intention	%	%	%
1983
21-25 April	70	29	1
17-18 May	81	17	1
24-25 May	84	14	2
1-3 June	88	10	2
1987
12-14 May	73	25	2
20-21 May	80	18	2
27-28 May	87	12	1
3-4 June	92	7	1
9-10 June	88	11	1
1992
11-12 March	64	32	4
18-20 March	73	24	3
25-27 March	81	18	1
1-3 April	88	11	1
7-9 April	81	16	1
1997
1 April	71	25	4
8 April	68	28	4
15 April	69	27	4
22 April	70	26	4
29 April	73	21	6
2001
30-31 March	63	34	2
8 May	65	32	3
10-12 May	63	32	5
15 May	67	31	2
22 May	66	32	2
29 May	69	30	1
31 May-2 June	72	27	1
4-5 June	76	23	1
5 June	77	21	2
2005
17-21 February	57	40	4
1-3 April	57	41	2
7-9 April	57	42	1
7-11 April	64	32	4
21-25 April	62	35	3
28-29 April	66	34	*
29 April-1 May	63	36	1
3-4 May	72*	27	1
2010
18-19 April	50	49	1
23 April	54	45	*
5 May	69	30	1
2014
9-11 August	43	56	2
2015
11-13 January	47	51	2
10-12 February	48	50	2
8-11 March	56	41	2
12-15 April	60	38	2
26-29 April	65	34	1
5-6 May	78	21	1
2017
21-25 April	63	36	1
15-17 May	67	32	1
30 May-1 June	78	20	2
6-7 June	80	19	1
2019
15-19 November	59	40	*
2-4 December	72	27	*
9-11 December	76	23	*

*Including those who said they had already voted by post