condition	mean	min	max
4 h after light	5.947345	5.70398	6.19071
8 h after light	5.96668	5.68932	6.24404
12 h after light	7.167745	6.37579	7.9597
4 h after dark	8.111550000000001	7.4269	8.7962
8 h after dark	8.107165	7.63875	8.57558
12 h after dark	7.214645000000001	6.98983	7.43946