condition	mean	min	max
4 h after light	5.8634466666666665	5.83593	5.88275
8 h after light	5.850853333333333	5.65205	6.004519999999999
12 h after light	5.866493333333334	5.67195	5.96398
4 h after dark	6.100490000000001	5.9485	6.24204
8 h after dark	5.95072	5.83119	6.189369999999999
12 h after dark	6.22133	6.19449	6.24196