condition	mean	min	max
4 h after light	7.198103333333334	6.72925	7.59655
8 h after light	7.228846666666667	6.68473	7.6845
12 h after light	7.5245	7.33046	7.6568
4 h after dark	7.60817	6.8797	8.05241
8 h after dark	7.62763	7.060010000000001	8.064969999999999
12 h after dark	7.140093333333334	6.83518	7.4454899999999995