condition	mean	min	max
4 h after light	6.01525	5.89511	6.08944
8 h after light	5.9889600000000005	5.8193	6.09135
12 h after light	5.95582	5.8143400000000005	6.1123400000000006
4 h after dark	6.0364	5.95104	6.1605300000000005
8 h after dark	5.989450000000001	5.61265	6.21515
12 h after dark	6.053943333333334	5.992030000000001	6.11683