condition	mean	min	max
4 h after light	7.8730166666666666	7.80576	7.9662
8 h after light	7.996396666666666	7.7884	8.1711
12 h after light	8.16389	7.91047	8.30052
4 h after dark	8.26542	8.08553	8.44232
8 h after dark	8.11226	7.8847	8.380519999999999
12 h after dark	8.2121	8.16237	8.23807