condition	mean	min	max
4 h after light	17.762847	15.432135	20.093559
8 h after light	16.511521	15.70848	17.314562
12 h after light	19.084893	19.084893	19.084893
4 h after dark	21.89577	19.084893	24.706647
8 h after dark	18.092961000000003	17.101029	19.084893
12 h after dark	19.921042	19.921042	19.921042