condition	mean	min	max
4 h after light	13.63795	13.4881	13.7878
8 h after light	7.458705	6.48301	8.4344
12 h after light	3.55042	3.1799	3.92094
4 h after dark	3.82265	3.57409	4.07121
8 h after dark	7.189265000000001	6.7278	7.65073
12 h after dark	8.746030000000001	8.26038	9.23168