Questionnaire about mobile phones
21
21
19
15 years old
16
16-year-old
16
17
16
15
17
16-year-old
17
17 años de edad
17
16
24
16
13
15
18
18
12
29
23
17
16
17
yes
18
17
16
20
22
23
16
17
20
20
21
33
13
22
22
18
19 years old
23
15
26
34
20
dear
29
19
22
24
23
24
17
25
18
26
18
37
20
17
22 years
20
20
18
19
14
13
19😍
16
16
19
15
16
17
19
17
number
23
17
16
22 years
16
22 años de edad
20
20 years
17
15
20
20
17
15
16
17
18