condition	mean	min	max
4 h after light	6.76928	6.52062	7.1079300000000005
8 h after light	6.375699999999999	6.1841099999999996	6.60917
12 h after light	6.218123333333334	6.08776	6.44151
4 h after dark	6.540923333333333	6.44383	6.670139999999999
8 h after dark	6.509476666666667	6.44451	6.5525
12 h after dark	6.558633333333334	6.46327	6.618530000000001