condition	mean	min	max
4 h after light	13.1604	12.3465	13.9743
8 h after light	7.979135	7.8933	8.06497
12 h after light	4.26119	4.16725	4.35513
4 h after dark	3.058855	2.81457	3.30314
8 h after dark	2.987775	2.90573	3.06982
12 h after dark	5.856185	5.77682	5.93555