condition	mean	min	max
4 h after light	2.68657	2.67612	2.69702
8 h after light	2.751695	2.57533	2.92806
12 h after light	3.1942	3.18594	3.20246
4 h after dark	2.900305	2.74492	3.05569
8 h after dark	2.49121	2.31727	2.66515
12 h after dark	3.363635	3.08416	3.64311