condition	mean	min	max
4 h after light	5.4747	4.80003	6.14937
8 h after light	6.56409	6.27759	6.85059
12 h after light	7.197324999999999	6.40321	7.99144
4 h after dark	8.584415	8.02108	9.14775
8 h after dark	6.285765	5.63251	6.93902
12 h after dark	6.66313	6.22741	7.09885