condition	mean	min	max
4 h after light	5.325195	4.55654	6.09385
8 h after light	4.80096	4.01273	5.58919
12 h after light	6.196895	4.16044	8.23335
4 h after dark	7.063395	5.38837	8.73842
8 h after dark	5.379945	4.12147	6.63842
12 h after dark	4.991295	3.71945	6.26314