condition	mean	min	max
4 h after light	2.38996	0.0	4.77992
8 h after light	1.93634	0.0	3.87268
12 h after light	0.0	0.0	0.0
4 h after dark	8.2681	0.0	16.5362
8 h after dark	4.106885	0.0	8.21377
12 h after dark	7.51355	6.86882	8.15828