condition	mean	min	max
4 h after light	6.56271	6.10555	7.01987
8 h after light	5.21507	4.93612	5.49402
12 h after light	5.46925	5.19199	5.74651
4 h after dark	6.583373333333333	5.97991	6.93559
8 h after dark	5.85621	5.19372	6.40114
12 h after dark	5.803983333333333	5.54272	6.10739