condition	mean	min	max
4 h after light	10.309563333333333	9.9344	10.51868
8 h after light	8.937503333333334	8.54025	9.234110000000001
12 h after light	8.98479	8.5689	9.22412
4 h after dark	8.820020000000001	8.28997	9.168610000000001
8 h after dark	9.48908	9.02931	9.80515
12 h after dark	9.992973333333333	9.81076	10.115