condition	mean	min	max
4 h after light	9.416116666666667	9.18163	9.60332
8 h after light	9.20971	9.0553	9.37375
12 h after light	9.224933333333333	9.12979	9.34504
4 h after dark	9.177140000000001	8.980030000000001	9.40033
8 h after dark	9.29243	9.15503	9.44661
12 h after dark	9.413736666666667	9.31081	9.48315