Questionnaire about mobile phones
14
20
19 years old
16
17
wvriaidhm
22
16
22
20
24
12
19
15
16
11
105
12
17
16
25
25
14
15
16
22
15 years
16
30
16
24
12
22
18
23
18
25
666
17
17 years old
17
15
16
15
16
24
14
22
17
46.3
16
18
25 years
21
17 years
16
16
19
18
18
25
21
18
21
20
23
20
14
23
21
17
17
15
28
23
22
19
17
21
25
23
16
150
17
16
19 years
20
22 years
25
17
16
21
32
25
20
14
14 years old
18
15
25