condition	mean	min	max
4 h after light	6.938689999999999	6.790939999999999	7.03417
8 h after light	7.688040000000001	7.55053	7.935410000000001
12 h after light	7.981986666666667	7.969189999999999	7.995360000000001
4 h after dark	8.395606666666666	8.048869999999999	8.81787
8 h after dark	7.89942	7.449669999999999	8.14673
12 h after dark	7.735943333333333	7.3876	8.00309