9/3/96-11/4/96

9/5/00-11/6/00

9/7/04-11/1/04

9/2/08-11/3/08

%

%

%

%

Not much interested

22.9

21.8

15.3

14.8

Somewhat interested

49.6

49.3

43.2

41.1

Very much interested

27.5

28.9

41.5

44.5

Don’t know

0.0

0.0

0.0

0.0

N

4518

4723

3149

3335