Table 3 Classification of consumer answered for questionnaire into gender, ages, and annual income

By gender			By ages			By annual income
Gender	No.	%	Age	No.	%	× KRW million	No.	%
Male	60	37.50	20∼30	62	38.75	Below 30	53	33.13
			30∼40	41	25.62	30∼50	55	34.37
Female	100	62.50	40∼50	28	17.50	50∼100	32	20.00
			50∼60	26	16.25	Over 100	10	6.25
			Over 60	3	1.88	No answer	10	6.25
Total	160	100	Total	160	100.00	Total	160	100.00