condition	mean	min	max
0 h after light	18.2729	17.3954	19.1504
4 h after light	12.71715	10.37	15.0643
8 h after light	9.01566	8.31269	9.71863
4 h after dark	13.578149999999999	10.7197	16.4366
8 h after dark	17.1796	15.7336	18.6256
12 h after dark	20.4756	19.0959	21.8553