condition	mean	min	max
4 h after light	6.000335	4.46781	7.53286
8 h after light	5.117955	4.6888	5.54711
12 h after light	7.05474	7.03609	7.07339
4 h after dark	7.3255799999999995	6.49709	8.10671
8 h after dark	11.39472	8.44136	13.5817
12 h after dark	6.186636666666667	5.77339	6.55457