condition	mean	min	max
4 h after light	9.769003333333334	9.44745	9.9782
8 h after light	9.84948	9.53389	10.06444
12 h after light	9.90404	9.574069999999999	10.18999
4 h after dark	9.73587	9.282580000000001	10.087710000000001
8 h after dark	9.7682	9.30386	10.015889999999999
12 h after dark	9.923346666666667	9.62288	10.095460000000001