condition	mean	min	max
4 h after light	2.14296	2.0995	2.18642
8 h after light	3.46048	3.28572	3.63524
12 h after light	2.8143000000000002	2.45317	3.17543
4 h after dark	6.296985	6.25002	6.34395
8 h after dark	4.542305000000001	4.51461	4.57
12 h after dark	3.6505549999999998	3.06966	4.23145