condition	mean	min	max
4 h after light	16.081888	15.78743	16.376346
8 h after light	13.0321635	12.279605	13.784722
12 h after light	13.3833515	12.917577	13.849126
4 h after dark	13.720212	13.720212	13.720212
8 h after dark	14.425055	11.910878	16.939232
12 h after dark	14.357731	14.357731	14.357731