condition	mean	min	max
4 h after light	4.44004	4.3019300000000005	4.67319
8 h after light	4.354676666666667	4.28943	4.45512
12 h after light	4.498066666666666	4.30234	4.78564
4 h after dark	4.507316666666666	4.3921	4.5893
8 h after dark	4.35642	4.29827	4.3918
12 h after dark	4.44927	4.32861	4.67954