condition	mean	min	max
4 h after light	8.77195	7.9428	9.6011
8 h after light	12.00915	11.8348	12.1835
12 h after light	15.91405	15.4428	16.3853
4 h after dark	16.177766666666667	15.5295	16.9305
8 h after dark	14.5362	13.9012	14.9173
12 h after dark	11.708266666666667	10.9744	12.5871