condition	mean	min	max
4 h after light	9.10731	8.16492	10.0497
8 h after light	7.37224	6.98661	7.75787
12 h after light	7.243475	6.9911	7.49585
4 h after dark	10.393453333333333	8.84346	11.788
8 h after dark	10.402816666666666	9.54215	11.3406
12 h after dark	6.226581	0.240613	9.31611