condition	mean	min	max
4 h after light	8.764126666666666	8.61924	8.858089999999999
8 h after light	8.714163333333333	8.63895	8.75803
12 h after light	8.85567	8.79059	8.97596
4 h after dark	8.74278	8.58889	8.82992
8 h after dark	8.85595	8.75028	8.95284
12 h after dark	8.889276666666667	8.738660000000001	8.97433