condition	mean	min	max
4 h after light	2.67111	2.39372	2.9485
8 h after light	2.131965	1.79166	2.47227
12 h after light	2.05844	1.72978	2.3871
4 h after dark	2.52668	2.1362	2.91716
8 h after dark	2.73244	2.72043	2.74445
12 h after dark	3.328085	3.12964	3.52653