condition	mean	min	max
4 h after light	6.726025	6.65919	6.79286
8 h after light	7.11688	7.02326	7.2105
12 h after light	6.031155	5.47298	6.58933
4 h after dark	7.560485	7.26236	7.85861
8 h after dark	8.25666	8.0112	8.50212
12 h after dark	8.213255	8.01978	8.40673