condition	mean	min	max
4 h after light	6.296855000000001	5.70699	6.88672
8 h after light	6.287485	5.83038	6.74459
12 h after light	6.572815	6.55581	6.58982
4 h after dark	10.24411	9.29582	11.1924
8 h after dark	8.66856	8.36402	8.9731
12 h after dark	9.68315	9.67883	9.68747