condition	mean	min	max
4 h after light	8.673613333333334	8.36824	8.92627
8 h after light	8.645773333333333	8.59026	8.67676
12 h after light	9.055200000000001	8.98525	9.167710000000001
4 h after dark	8.58066	8.25548	8.78226
8 h after dark	8.654053333333334	8.435989999999999	8.936910000000001
12 h after dark	8.55998	8.41098	8.715589999999999