Table 1.

Demographic structure of the sample.

	No.	%
Age
Under 30 years	185	48.8
30–50 years	162	42.8
Above 50 years	32	8.4
Gender
Male	281	74.1
Female	98	25.9
Educational level
High school or below	160	42.2
Diploma	45	11.9
Bachelor	126	33.2
Master	16	4.2
Ph.D.	29	7.7
Others	3	0.8