condition	mean	min	max
4 h after light	6.332585	5.7543	6.91087
8 h after light	4.50464	4.46057	4.54871
12 h after light	4.94819	4.58751	5.30887
4 h after dark	5.93701	5.75342	6.22803
8 h after dark	6.31393	6.02301	6.82587
12 h after dark	6.145160000000001	5.65732	6.60444