Table 1:

Descriptive statistics of the samples

Variable		N	Ratio (%)
Gender	Male	551	63.1
	Female	323	36.9
Age (yr)	18–30	313	35.9
	31–40	345	39.6
	41–50	189	21.7
	>51	24	2.8
Marital status	Single	251	28.7
	Married	603	69.0
	Divorced	16	1.8
	Widowed	4	0.5
Work years	Less than one year	153	17.5
	1–3 years	234	26.8
	3–10 years	226	25.8
	Over 10 years	261	29.9
Education	High school	40	4.6
	College	244	27.9
	Undergraduate	540	61.8
	Post-graduate	50	5.7
Position	General staff	647	75.0
	Deputy staff	179	20.5
	Principle staff	48	5.5