condition	mean	min	max
4 h after light	1.545625	1.51655	1.5747
8 h after light	2.641775	2.56305	2.7205
12 h after light	2.693065	2.68099	2.70514
4 h after dark	4.695550000000001	4.06357	5.32753
8 h after dark	3.13202	3.00098	3.26306
12 h after dark	2.61874	2.29242	2.94506