condition	mean	min	max
4 h after light	6.175644999999999	5.84268	6.50861
8 h after light	5.492660000000001	5.44526	5.54006
12 h after light	5.482225	5.38739	5.57706
4 h after dark	5.68122	5.39081	5.93973
8 h after dark	6.24045	5.59564	7.15707
12 h after dark	6.490243333333333	5.93563	7.20596