condition	mean	min	max
0 h after light	7.109465	6.91135	7.30758
4 h after light	7.62233	7.08701	8.15765
8 h after light	5.91464	4.85151	6.97777
4 h after dark	8.001675	6.36532	9.63803
8 h after dark	6.95489	6.52426	7.38552
12 h after dark	5.83664	3.98158	7.6917