condition	mean	min	max
4 h after light	13.7799	13.0726	14.4872
8 h after light	15.0455	14.8378	15.2532
12 h after light	15.622300000000001	15.1066	16.138
4 h after dark	19.965400000000002	18.0822	21.8486
8 h after dark	16.643050000000002	16.3109	16.9752
12 h after dark	16.91055	16.8103	17.0108