condition	mean	min	max
4 h after light	6.473473333333333	6.32302	6.579739999999999
8 h after light	6.32146	6.1862	6.45228
12 h after light	6.195396666666666	5.78605	6.61492
4 h after dark	6.28738	6.03437	6.45463
8 h after dark	6.442220000000001	6.1849300000000005	6.77955
12 h after dark	6.410986666666666	6.3267	6.51746