condition	mean	min	max
4 h after light	2.5127300000000004	2.30147	2.72399
8 h after light	4.06219	3.9508	4.17358
12 h after light	4.50348	4.28332	4.72364
4 h after dark	5.07144	4.63797	5.50491
8 h after dark	4.35869	4.26377	4.45361
12 h after dark	3.68586	3.64311	3.72861