condition	mean	min	max
4 h after light	9.27635	8.67653	9.87617
8 h after light	11.4265	10.869	11.984
12 h after light	9.400935	9.15097	9.6509
4 h after dark	10.294186666666667	9.35926	10.8381
8 h after dark	9.469006666666667	8.94498	9.85213
12 h after dark	8.448640000000001	7.51762	8.93091