condition mean min max 0 h after light 0.0253357 0.0 0.0506714 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.05436635 0.050892 0.0578407 2 h after dark 0.0260835 0.0 0.052167 4 h after dark 0.0 0.0 0.0 8 h after dark 0.055978 0.0549623 0.0569937 12 h after dark 0.0270445 0.0 0.054089