condition	mean	min	max
4 h after light	4.559285	4.02587	5.0927
8 h after light	4.45772	4.44932	4.46612
12 h after light	4.610785	4.59622	4.62535
4 h after dark	6.394453333333333	6.24994	6.54103
8 h after dark	6.50547	6.1401	7.01799
12 h after dark	6.29695	5.23998	7.64507