condition	mean	min	max
0 h after light	7.820765	7.1612	8.48033
4 h after light	7.108445000000001	5.24023	8.97666
8 h after light	14.6495	12.6103	16.6887
4 h after dark	18.59695	16.9556	20.2383
8 h after dark	9.86892	8.89464	10.8432
12 h after dark	9.231580000000001	8.48792	9.97524