condition	mean	min	max
4 h after light	2.73534	2.33992	3.13076
8 h after light	4.31235	3.60899	5.01571
12 h after light	7.183325	5.83461	8.53204
4 h after dark	7.11624	6.03169	7.84855
8 h after dark	6.68846	6.00697	7.14418
12 h after dark	4.844223333333333	4.29507	5.78442