condition	mean	min	max
4 h after light	8.9649575	8.036369	9.893546
8 h after light	8.407943	8.033311	8.782575
12 h after light	8.109346	7.614074	8.604618
4 h after dark	8.7819495	8.397944	9.165955
8 h after dark	7.9534035	7.870438	8.036369
12 h after dark	7.104119	7.104119	7.104119