Demographic data of the respondents
| Category | Item | Frequency (n = 477) | Percent (%) |
|---|---|---|---|
| Gender | male | 174 | 36.50 |
| female | 303 | 63.50 | |
| Age | 18–25 | 69 | 14.47 |
| 26–30 | 131 | 27.46 | |
| 31–40 | 237 | 49.69 | |
| 41–50 | 32 | 6.71 | |
| 51–60 | 8 | 1.68 | |
| Education Level | College | 53 | 11.10 |
| Undergraduate degree | 393 | 82.40 | |
| Graduate students and above | 31 | 6.50 | |
| Yearly income | 0–¥50,000 | 48 | 10.10 |
| ¥50,001–¥100,000 | 91 | 19.10 | |
| ¥100,001–¥150,000 | 129 | 27.00 | |
| ¥150,001–¥200,000 | 104 | 21.80 | |
| ¥200,001–¥250,000 | 59 | 12.40 | |
| ¥250,001–¥300,000 | 27 | 5.70 | |
| Over ¥300,000 | 19 | 4.00 | |
| Purchase frequency (per week) | Less than once | 22 | 4.60 |
| Once | 82 | 17.20 | |
| Twice | 160 | 33.50 | |
| Three times | 62 | 13.00 | |
| More than three times | 151 | 31.70 |
| Category | Item | Frequency ( | Percent (%) |
|---|---|---|---|
| Gender | male | 174 | 36.50 |
| female | 303 | 63.50 | |
| Age | 18–25 | 69 | 14.47 |
| 26–30 | 131 | 27.46 | |
| 31–40 | 237 | 49.69 | |
| 41–50 | 32 | 6.71 | |
| 51–60 | 8 | 1.68 | |
| Education Level | College | 53 | 11.10 |
| Undergraduate degree | 393 | 82.40 | |
| Graduate students and above | 31 | 6.50 | |
| Yearly income | 0–¥50,000 | 48 | 10.10 |
| ¥50,001–¥100,000 | 91 | 19.10 | |
| ¥100,001–¥150,000 | 129 | 27.00 | |
| ¥150,001–¥200,000 | 104 | 21.80 | |
| ¥200,001–¥250,000 | 59 | 12.40 | |
| ¥250,001–¥300,000 | 27 | 5.70 | |
| Over ¥300,000 | 19 | 4.00 | |
| Purchase frequency (per week) | Less than once | 22 | 4.60 |
| Once | 82 | 17.20 | |
| Twice | 160 | 33.50 | |
| Three times | 62 | 13.00 | |
| More than three times | 151 | 31.70 |
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