condition	mean	min	max
4 h after light	7.117123333333334	6.97965	7.276389999999999
8 h after light	8.043566666666667	7.69097	8.37385
12 h after light	8.09399	7.893610000000001	8.219669999999999
4 h after dark	8.15269	7.98654	8.31295
8 h after dark	7.926346666666667	7.68306	8.22708
12 h after dark	7.3347999999999995	6.92925	7.632610000000001