Table A1.

Distributions of respondents’ locations.

Province	No. (%) (N = 2133)
Anhui	38 (1.78)
Beijing	33 (1.55)
Chongqing	136 (6.38)
Fujian	75 (3.52)
Gansu	19 (0.89)
Guangdong	174 (8.16)
Guangxi	37 (1.73)
Guizhou	5 (0.23)
Hainan	4 (0.19)
Hebei	60 (2.81)
Heilongjiang	32 (1.50)
Henan	51 (2.39)
Hubei	46 (2.16)
Hunan	36 (1.69)
Inner Mongolia	14 (0.66)
Jiangsu	687 (32.21)
Jiangxi	44 (2.06)
Jilin	19 (0.89)
Liaoning	34 (1.59)
Ningxia	8 (0.38)
Qinghai	23 (1.08)
Shaanxi	22 (1.03)
Shandong	168 (7.88)
Shanghai	124 (5.81)
Shanxi	35 (1.64)
Sichuan	42 (1.97)
Tianjin	5 (0.23)
Tibet	1 (0.05)
Xinjiang	6 (0.28)
Yunnan	19 (0.89)
Zhejiang	136 (6.38)