condition	mean	min	max
4 h after light	7.464743333333334	7.4347	7.492710000000001
8 h after light	7.53329	7.42068	7.649369999999999
12 h after light	8.129383333333333	8.0758	8.16976
4 h after dark	8.066790000000001	7.92622	8.18954
8 h after dark	7.8648299999999995	7.75482	8.060939999999999
12 h after dark	7.638066666666667	7.584630000000001	7.67387