condition	mean	min	max
4 h after light	7.0104299999999995	6.51637	7.50449
8 h after light	4.79997	4.73915	4.86079
12 h after light	6.795059999999999	6.26458	7.32554
4 h after dark	8.134313333333333	6.97976	8.72642
8 h after dark	7.64633	6.82356	8.14441
12 h after dark	8.335356666666666	7.10025	9.29973