condition	mean	min	max
4 h after light	9.09128	8.8962	9.25722
8 h after light	9.264380000000001	9.01148	9.486930000000001
12 h after light	9.306033333333334	8.88734	9.601339999999999
4 h after dark	9.202503333333333	8.90737	9.47895
8 h after dark	9.129533333333333	8.94196	9.420639999999999
12 h after dark	8.99978	8.765839999999999	9.14884