condition	mean	min	max
4 h after light	7.09507	6.99434	7.1958
8 h after light	4.73656	4.67425	4.79887
12 h after light	5.2340599999999995	5.14	5.32812
4 h after dark	6.88419	6.57115	7.19723
8 h after dark	7.278675	6.81348	7.74387
12 h after dark	7.174585	6.89277	7.4564