condition	mean	min	max
4 h after light	5.188405	4.31662	6.06019
8 h after light	3.45747	3.32275	3.59219
12 h after light	3.88442	3.66894	4.0999
4 h after dark	4.859466666666667	3.51298	5.8676
8 h after dark	5.63139	5.00645	6.17398
12 h after dark	5.293893333333333	4.51258	6.19295