condition	mean	min	max
4 h after light	7.17741	6.26322	8.0916
8 h after light	7.514715	7.1407	7.88873
12 h after light	7.62919	6.78655	8.47183
4 h after dark	8.388795	7.68858	9.08901
8 h after dark	5.861015	5.68298	6.03905
12 h after dark	6.52092	6.07924	6.9626