condition	mean	min	max
4 h after light	5.794343333333334	5.742380000000001	5.8954
8 h after light	5.666943333333333	5.6438	5.71105
12 h after light	5.6532	5.60241	5.729419999999999
4 h after dark	5.80071	5.75566	5.84929
8 h after dark	5.614516666666667	5.51814	5.73601
12 h after dark	5.71843	5.5519099999999995	5.80621