condition	mean	min	max
4 h after light	2.8654433333333333	2.12665	4.20865
8 h after light	3.12879	1.03249	5.02322
12 h after light	2.79969	2.10192	3.51713
4 h after dark	3.03139	2.39344	4.00032
8 h after dark	2.30442	1.9467	2.68769
12 h after dark	2.47046	2.15359	2.64733