condition	mean	min	max
0 h after light	6.536175	6.33279	6.73956
4 h after light	7.05658	6.91875	7.19441
8 h after light	6.861305	6.64124	7.08137
4 h after dark	7.567175	7.55225	7.5821
8 h after dark	8.01211	7.95176	8.07246
12 h after dark	6.36128	6.26241	6.46015