condition	mean	min	max
4 h after light	0.029107	0.0	0.058214
8 h after light	0.0	0.0	0.0
12 h after light	0.0	0.0	0.0
4 h after dark	0.0	0.0	0.0
8 h after dark	0.03762405	0.0252308	0.0500173
12 h after dark	0.04182725	0.0	0.0836545