condition	mean	min	max
4 h after light	7.6131815	7.400761	7.825602
8 h after light	8.428329999999999	7.933052	8.923608
12 h after light	7.973609	7.696518	8.2507
4 h after dark	7.428145499999999	7.317145	7.539146
8 h after dark	7.820912	7.820912	7.820912
12 h after dark	7.820912	7.820912	7.820912