condition	mean	min	max
4 h after light	13.008394000000001	8.620418	17.39637
8 h after light	8.292091	8.153588	8.430594
12 h after light	8.8997385	8.430594	9.368883
4 h after dark	7.5245485	7.411909	7.637188
8 h after dark	7.294249499999999	6.322848	8.265651
12 h after dark	23.546325	23.546325	23.546325