condition	mean	min	max
4 h after light	8.938870000000001	7.68824	10.1895
8 h after light	2.994475	2.76414	3.22481
12 h after light	5.757075	4.10974	7.40441
4 h after dark	20.997999999999998	15.9711	26.0249
8 h after dark	15.38465	14.4909	16.2784
12 h after dark	11.794265	9.55613	14.0324