condition	mean	min	max
4 h after light	9.54324	9.478480000000001	9.63031
8 h after light	9.472480000000001	9.33035	9.617280000000001
12 h after light	9.614846666666667	9.5543	9.70945
4 h after dark	9.66327	9.59262	9.76548
8 h after dark	9.799913333333334	9.7185	9.95663
12 h after dark	10.025793333333333	9.79838	10.309239999999999