condition	mean	min	max
4 h after light	7.125473333333333	6.6227800000000006	7.40117
8 h after light	7.055986666666667	6.784110000000001	7.2726
12 h after light	7.11955	6.67048	7.52641
4 h after dark	7.43423	7.20787	7.61132
8 h after dark	7.490793333333333	7.18323	7.6961699999999995
12 h after dark	7.756593333333334	7.579280000000001	7.93438