condition	mean	min	max
4 h after light	6.483888889	5.995	6.74
8 h after light	7.184444444333334	6.11	9.093333333
12 h after light	5.434444444666667	3.836666667	7.98
1.5 h after dark	4.2855555553333335	3.12	5.883333333
5.5 h after dark	4.701111111	2.153333333	6.13
9.5 h after dark	6.78	5.51	7.55