what was the contribution (share) of each of these sources?
Categories
Value
Category
-7
NA
-6
NS
0
5
10
11
13
15
20
25
30
33
35
37
40
41
50
55
60
65
70
73
80
90
95
100
Sysmiss
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.