condition	mean	min	max
4 h after light	6.006495	5.83146	6.18153
8 h after light	6.989604999999999	6.528	7.45121
12 h after light	8.46163	8.39584	8.52742
4 h after dark	7.615983333333333	7.10717	7.97982
8 h after dark	6.15513	5.74799	6.50327
12 h after dark	6.25084	5.81144	6.63088