Social networks
20
500
more than two thousand
695
400
<900
more than 300
110
50
225
about 200
257
300
650
500
600
about 300
around 250
90% think so
150
50
500
220
560
467
772
500
592
304
40
580
1020
89
730
179
100
192
190
720
341
265
521
138
150
464
500
350
550
f