condition	mean	min	max
4 h after light	3.65561	2.97722	4.334
8 h after light	3.000135	2.89403	3.10624
12 h after light	3.5933149999999996	3.06305	4.12358
4 h after dark	5.518	5.4784	5.5576
8 h after dark	3.59453	3.17886	4.0102
12 h after dark	3.48867	2.99424	3.9831