condition	mean	min	max
4 h after light	9.368773333333333	5.3679	13.0845
8 h after light	4.2111833333333335	1.35094	6.55848
12 h after light	4.781313333333333	2.37226	8.22727
4 h after dark	8.1007	4.80141	10.3314
8 h after dark	12.05792	9.09226	14.668
12 h after dark	16.0894	10.5197	21.6114