		n	%
Sex	Male	99	84.62
	Female	18	15.38
Age group	20 s	3	2.56
	30 s	23	19.66
	40 s	48	41.03
	50 s	28	23.93
	60 s	15	12.82
Household size	Single person	35	29.91
	Multiple persons	82	70.09
Annual household income	Less than 2 million yen	7	5.98
Annual household income	2 to less than 4 million yen	23	19.66
	4 to less than 6 million yen	31	26.50
	6 to less than 8 million yen	21	17.95
	8 to less than 10 million yen	21	17.95
	10 to less than 12 million yen	7	5.98
	12 million yen or more	7	5.98
Education	Junior high school	1	0.85
	Senior high school	26	22.22
	Specialized or vocational training school	11	9.40
	Two-year or technical college	4	3.42
	University	73	62.39
	Graduate school	2	1.71