condition	mean	min	max
4 h after light	3.893555	3.38227	4.40484
8 h after light	6.52202	6.19326	6.85078
12 h after light	7.3721	7.21394	7.53026
4 h after dark	9.296255	8.90262	9.68989
8 h after dark	8.12597	6.35695	9.89499
12 h after dark	6.91633	6.07547	7.75719