condition	mean	min	max
4 h after light	3.45812	3.17365	3.74259
8 h after light	3.9825150000000002	3.83698	4.12805
12 h after light	7.275404999999999	6.90917	7.64164
4 h after dark	8.520716666666667	8.2405	9.03269
8 h after dark	4.751093333333333	4.66652	4.87073
12 h after dark	6.535893333333333	6.00129	6.83146