condition	mean	min	max
0 h after light	7.805295	7.52244	8.08815
4 h after light	6.317355	5.99298	6.64173
8 h after light	6.19707	5.16389	7.23025
4 h after dark	9.389955	9.10413	9.67578
8 h after dark	8.303905	7.46944	9.13837
12 h after dark	8.266950000000001	8.11424	8.41966