condition	mean	min	max
4 h after light	7.2830200000000005	7.15629	7.40975
8 h after light	7.943060000000001	7.52423	8.36189
12 h after light	9.428625	8.29915	10.5581
4 h after dark	23.105600000000003	22.8841	23.3271
8 h after dark	10.36075	10.0165	10.705
12 h after dark	8.157525	8.00966	8.30539