Table 1 Demographic characteristics of the respondents of survey 1 & 2

Gender

Male

156

49.057

182

42.130

Female

162

50.943

250

57.870

Age

Under 18

1

0.314

5

1.157

19–29

147

46.226

182

42.130

30–39

141

44.340

208

48.148

40–49

18

5.660

29

6.713

Over 50

11

3.459

8

1.852

Marital status

Married

94

29.560

321

74.306

Unmarried

224

70.440

111

25.694

Monthly Income

(RMB)

Below 4000

46

14.465

49

11.343

4001–6000

63

19.811

94

21.759

6001–12,000

147

46.226

194

44.907

12,001–18,000

45

14.151

72

16.667

18,001 or more

17

5.346

23

5.324

Education

Junior high school or below

1

0.314

1

0.231

High school or secondary school

10

3.145

15

3.472

Undergraduate or college

276

86.792

386

89.352

Institute including above

31

9.748

30

6.944

Occupation

Civil servant

27

8.491

40

9.259

Clerk

153

48.113

210

48.611

Worker

53

16.667

69

15.972

Public service agency

21

6.604

36

8.333

Student

31

9.748

33

7.639

Self-employed

33

10.377

44

10.185

Area

Eastern china

191

60.063

266

61.574

Central china

69

21.698

77

17.824

Western china

32

10.063

67

15.509

Northeast china

25

7.862

21

4.861

Hong Kong, Macao and Taiwan in China

1

0.314

1

0.231