condition	mean	min	max
0 h after light	9.042580000000001	8.89099	9.19417
4 h after light	5.688855	4.94856	6.42915
8 h after light	6.51683	4.37927	8.65439
4 h after dark	11.36185	10.4222	12.3015
8 h after dark	10.50309	8.61528	12.3909
12 h after dark	7.411695	7.23324	7.59015