condition	mean	min	max
4 h after light	4.63185	3.05477	6.20893
8 h after light	14.29505	13.8102	14.7799
12 h after light	21.09885	11.8112	30.3865
4 h after dark	8.500255	8.24432	8.75619
8 h after dark	9.48489	8.30718	10.6626
12 h after dark	8.21751	5.75092	10.6841