condition	mean	min	max
4 h after light	8.20239	8.07385	8.399339999999999
8 h after light	8.326343333333334	8.15752	8.44134
12 h after light	8.835653333333333	8.717039999999999	8.98683
4 h after dark	8.96971	8.8467	9.09296
8 h after dark	8.72963	8.544880000000001	8.92276
12 h after dark	8.337053333333333	8.31502	8.35778