condition	mean	min	max
4 h after light	4.013986666666667	3.89702	4.18041
8 h after light	3.9565	3.86954	4.05162
12 h after light	3.90276	3.81791	3.95856
4 h after dark	3.92583	3.8867	3.9557599999999997
8 h after dark	4.046403333333333	3.9864599999999997	4.09605
12 h after dark	3.9633433333333334	3.9138900000000003	4.0159