condition	mean	min	max
4 h after light	2.776625	2.72376	2.82949
8 h after light	2.54938	2.3951	2.70366
12 h after light	3.29307	3.15951	3.42663
4 h after dark	4.544605	4.34645	4.74276
8 h after dark	3.48854	3.23974	3.73734
12 h after dark	3.033685	3.004	3.06337