Table 4. Number of samples by region

Division Cases (persons) Composition ratio (%)
Seoul 133 15.7
Busan 91 10.8
Daegu 61 7.2
Incheon 43 5.1
Gwangju 60 7.1
Daejeon 73 8.6
Ulsan 27 3.2
Gyeonggi 131 15.5
Gangwon 42 5.0
Chungbuk 28 3.3
Chunnam (Sejong) 25 3.0
Jeonbuk 34 4.0
Jeonnam 23 2.7
Gyeongbuk 39 4.6
Gyeongnam 35 4.1
Sum 845 100.0