condition	mean	min	max
4 h after light	7.252113333333333	7.217639999999999	7.280480000000001
8 h after light	7.4342266666666665	7.33562	7.603610000000001
12 h after light	7.94591	7.857189999999999	8.015989999999999
4 h after dark	8.315976666666668	8.18828	8.51337
8 h after dark	8.238613333333333	8.20312	8.30358
12 h after dark	7.8091	7.6646	7.9241