condition	mean	min	max
0 h after light	4.155715	3.40371	4.90772
4 h after light	13.12143	8.93306	17.3098
8 h after light	2.8336	2.30574	3.36146
4 h after dark	1.4874745	0.741539	2.23341
8 h after dark	4.286745	2.62458	5.94891
12 h after dark	5.21244	4.52412	5.90076