condition	mean	min	max
4 h after light	11.931295	4.74289	19.1197
8 h after light	5.18665	0.0	10.3733
12 h after light	2.364885	0.0	4.72977
4 h after dark	14.588650000000001	12.4021	16.7752
8 h after dark	8.250255	8.21377	8.28674
12 h after dark	2.03957	0.0	4.07914