9/3/96-11/4/96

9/5/00-11/6/00

9/7/04-11/1/04

9/2/08-11/3/08

9/8/12-11/5/12

%

%

%

%

%

Agree

60.9

55.3

49.2

58.5

61.1

Disagree

25.0

34.1

35.1

24.1

18.7

Neither agree nor disagree

13.9

10.2

15.2

17.1

20.0

Don’t know; not sure; it depends; can’t say; refused to say

0.3

0.5

0.5

0.3

0.2

N

4019

4061

2778

3007

8142