condition	mean	min	max
4 h after light	4.74003	3.71936	5.7607
8 h after light	3.892385	3.72485	4.05992
12 h after light	4.373865	4.13855	4.60918
4 h after dark	4.14541	3.61729	4.67353
8 h after dark	4.30868	4.03424	4.58312
12 h after dark	4.72254	4.39426	5.05082