condition	mean	min	max
4 h after light	3.9763100000000002	3.8656599999999997	4.072830000000001
8 h after light	3.89978	3.88098	3.9369
12 h after light	3.988173333333333	3.88847	4.11156
4 h after dark	3.9144633333333334	3.8997800000000002	3.92481
8 h after dark	3.90781	3.8392	4.03222
12 h after dark	3.9242166666666667	3.85474	3.9594199999999997