condition	mean	min	max
3 h after light	7.413133333333334	6.67058	8.22495
6 h after light	7.47347	6.78442	8.3013
9 h after light	7.81473	7.01518	8.40059
12 h after light	8.248383333333333	7.9321	8.66296
3 h after dark	11.4071	11.1096	11.6037
6 h after dark	12.0316	11.5461	12.8179
9 h after dark	9.88577	9.14984	11.3107
12 h after dark	9.507536666666667	8.02248	11.8854