condition	mean	min	max
4 h after light	8.028686666666667	7.97151	8.12237
8 h after light	7.9272100000000005	7.711139999999999	8.238380000000001
12 h after light	7.83002	7.4605	8.17406
4 h after dark	8.061086666666666	7.831589999999999	8.42015
8 h after dark	7.948313333333333	7.650639999999999	8.314810000000001
12 h after dark	7.960726666666667	7.8594	8.01955