condition	mean	min	max
4 h after light	0.190589	0.0	0.381178
8 h after light	0.0	0.0	0.0
12 h after light	0.0	0.0	0.0
4 h after dark	0.166123	0.0	0.332246
8 h after dark	0.208122	0.0	0.416244
12 h after dark	0.0690045	0.0	0.138009