| Year | 2019 | 2020 | ||
| Month | April (PRE) | August (POST) | April (PRE) | August (POST) |
| Number of participants | N = 133 | N = 139 | N = 155 | N = 176 |
| Gender | M = 63 | M = 69 | M = 62 | M = 87 |
| F = 70 | F = 70 | F = 93 | F = 89 | |
| Age (years) | 19.87 (±1.29) | 19.86 (±1.27) | 18.63 (±0.83) | 18.96 (±0.86) |