condition	mean	min	max
4 h after light	8.46694	3.87403	12.6458
8 h after light	6.59309	2.55609	8.71202
12 h after light	7.849376666666667	6.95262	9.60021
4 h after dark	12.85693	9.75379	14.638
8 h after dark	12.46745	9.24515	14.7461
12 h after dark	8.824173333333334	6.39093	11.6258