condition	mean	min	max
4 h after light	4.266095	4.17329	4.3589
8 h after light	5.813245	5.58139	6.0451
12 h after light	5.941655	5.90776	5.97555
4 h after dark	15.782399999999999	15.4521	16.1127
8 h after dark	11.409199999999998	10.7747	12.0437
12 h after dark	7.881755	7.60002	8.16349