condition	mean	min	max
4 h after light	4.427386666666667	4.37277	4.46323
8 h after light	4.467586666666667	4.4426	4.5041400000000005
12 h after light	4.4261	4.3967	4.4448099999999995
4 h after dark	4.467303333333334	4.43156	4.49949
8 h after dark	4.53014	4.4183	4.68127
12 h after dark	4.433703333333333	4.39917	4.47182