| City | Frequency | First time... years ago | ||
| Only once | In total, three times at maximum | About once a month | ||
| Munich (n = 23) | 30.4% (n = 7) | 69.6% (n = 16) | 0% (n = 0) | 13% (n = 3) [3/7/10] |
| Frankfurt (n = 5) | 40.0% (n = 2) | 40.0% (n = 2) | 20.0% (n = 1) | 0% (n = 0) |
| Augsburg (n = 2) | 100% (n = 2) | 0% (n = 0) | 0% (n = 0) | 0% (n = 0) |
| Halle (n = 2) | 0% (n = 0) | 100% (n = 2) | 0% (n = 0) | 0% (n = 0) |
| Total (n = 32) | 34.4% (n = 11) | 62.5% (n = 20) | 3.1% (n = 1) | 9.4% (n = 3) [3/7/10] |