project		Number of cases	Composition ratio (%)
Gender	Male	158	58.52
Gender	Female	112	41.48
Type of household registration	Town account	130	48.15
Type of household registration	Agricultural account	140	51.85
Actual age	0~	20	7.41
	6~	48	17.78
	15~	58	21.48
	25~	91	33.70
	45~	29	10.74
	60~	24	8.89
Education level	Primary school and below	65	24.07
	Junior high school	84	31.11
	High school or technical secondary school	50	18.52
	University or College	48	17.78
	Bachelor or above	23	8.52
Job occupation	Agriculture, forestry and animal husbandry	34	12.59
	Students and preschool	99	36.67
	Government enterprises and institutions	40	14.81
	Other	51	18.89
	Unemployed or unemployed	40	14.81
	Retirement	6	2.22