condition	mean	min	max
4 h after light	7.3138266666666665	7.26767	7.37597
8 h after light	7.253243333333334	7.181610000000001	7.35353
12 h after light	6.991336666666666	6.840039999999999	7.089589999999999
4 h after dark	7.518436666666666	7.36832	7.62365
8 h after dark	7.383100000000001	7.33719	7.430110000000001
12 h after dark	7.667536666666667	7.5183800000000005	7.8457