condition	mean	min	max
4 h after light	5.9525266666666665	5.89507	6.06527
8 h after light	6.067563333333333	6.02526	6.11315
12 h after light	6.005730000000001	5.98838	6.03178
4 h after dark	6.01415	5.93023	6.105980000000001
8 h after dark	5.63424	5.5061800000000005	5.77221
12 h after dark	5.608183333333334	5.57996	5.65948