condition	mean	min	max
4 h after light	6.98266	6.92724	7.03808
8 h after light	6.17786	5.93303	6.42269
12 h after light	5.57301	4.66853	6.47749
4 h after dark	5.320535	4.9467	5.69437
8 h after dark	4.39672	4.27523	4.51821
12 h after dark	5.987385	5.9255	6.04927