condition	mean	min	max
0 h after light	7.783745	7.4131	8.15439
4 h after light	8.013985	7.88215	8.14582
8 h after light	7.263315	7.09892	7.42771
4 h after dark	7.871169999999999	6.97699	8.76535
8 h after dark	8.733450000000001	8.34317	9.12373
12 h after dark	7.559955	7.30344	7.81647