condition	mean	min	max
4 h after light	3.6648899999999998	3.60892	3.70715
8 h after light	3.6783	3.6477800000000005	3.7021300000000004
12 h after light	3.651796666666667	3.6256	3.6933800000000003
4 h after dark	3.68435	3.645	3.7399199999999997
8 h after dark	3.6834633333333335	3.60354	3.7451199999999996
12 h after dark	3.677903333333333	3.6712800000000003	3.6846699999999997