condition	mean	min	max
4 h after light	18.3136945	15.618152	21.009237
8 h after light	15.999153	15.130843	16.867463
12 h after light	17.3707985	14.670867	20.07073
4 h after dark	15.0119695	14.920048	15.103891
8 h after dark	11.333074	10.466337	12.199811
12 h after dark	35.659246	35.659246	35.659246