condition	mean	min	max
4 h after light	8.316906666666666	8.187489999999999	8.43817
8 h after light	7.07489	7.05151	7.10986
12 h after light	7.9826	7.8963399999999995	8.11744
4 h after dark	7.293383333333333	7.23623	7.336139999999999
8 h after dark	7.698363333333333	7.4694899999999995	7.9554
12 h after dark	8.153186666666667	8.147110000000001	8.16162