condition	mean	min	max
4 h after light	8.90075	8.85534	8.94224
8 h after light	8.665633333333334	8.632760000000001	8.70444
12 h after light	9.141559999999998	9.076189999999999	9.1947
4 h after dark	9.792506666666666	9.7141	9.83971
8 h after dark	9.14997	8.95518	9.27662
12 h after dark	8.953086666666666	8.85169	9.01625