16–24
25–34
35–44
45–54
55–64
65+
Male
Female
Primary incomplete
Primary completed
Secondary incomplete
Secondary completed
Tertiary incomplete
Tertiary competed
Agree strongly
Agree
Neither agree nor disagree
Disagree
Disagree strongly
A++
A+
A
A-
A--
B++
B+
B
B-
B--
C++
C+
C
C-
C--
D++
D+
D
D-
D--
-p
p
-s
s
-t
t