condition	mean	min	max
4 h after light	9.319936666666667	9.208689999999999	9.446810000000001
8 h after light	9.48137	9.34052	9.74162
12 h after light	9.355833333333333	9.28092	9.426739999999999
4 h after dark	9.32265	9.10271	9.5823
8 h after dark	9.39834	9.370239999999999	9.416960000000001
12 h after dark	9.38513	9.2619	9.48857