Table 1: Fifteen populations of known size selected for the first part of the PQC-NSUM questionnaire [26].

S.No Population of Known Size Selected Population Size
1 People who separated in 2010 7,079
2 Foreign residents 366,847
3 People with at least one foreign parent 8,410
4 Victims of car accidents with injuries 15,564
6 University Professors 5,077
7 Unemployed people in the region 2,493,613
8 People living in a 150 m2 house 2,100,510
9 People living in a 5-room house 7,079
10 People working part-time 239,154
11 3-member families 1,296,521
13 People who married in 2010 17,474
14 Children born in 2010 42,604
15 People above 14 with smoking habit 13,519,697
24 People above 3 who declare to train for a sport regularly 1,065,725
28 People who walk to work 574,226