condition	mean	min	max
4 h after light	3.1171800000000003	2.88247	3.35189
8 h after light	2.4850899999999996	2.38378	2.5864
12 h after light	2.49425	2.15086	2.83764
4 h after dark	3.5284450000000005	2.45074	4.60615
8 h after dark	3.32571	3.1315	3.51992
12 h after dark	2.8668950000000004	2.80975	2.92404