condition	mean	min	max
4 h after light	7.10159	6.82298	7.3802
8 h after light	6.59296	6.24547	6.94045
12 h after light	5.669615	4.98135	6.35788
4 h after dark	11.381	10.5161	12.8573
8 h after dark	12.145813333333333	9.18274	14.1554
12 h after dark	7.3697	6.38625	8.53324