condition	mean	min	max
4 h after light	18.004189500000003	16.218377	19.790002
8 h after light	17.655871	17.655871	17.655871
12 h after light	16.0377715	14.57663	17.498913
4 h after dark	18.383657	15.563635	21.203679
8 h after dark	19.762769	16.8814	22.644138
12 h after dark	14.808034	14.808034	14.808034