Don’t know

Leave

Remain

60

50

40

30

20

10

0

22 May

19 Apr

22 Mar

28 Feb

25 Oct

28 Sep

Percentage

Telephone polling

Source: What UK Thinks

Don’t know

Leave

Remain

60

50

40

30

20

10

0

22 May

19 Apr

22 Mar

28 Feb

25 Oct

28 Sep

Percentage

Telephone polling

Source: What UK Thinks