condition	mean	min	max
4 h after light	6.859476666666667	6.715960000000001	7.128819999999999
8 h after light	7.3703666666666665	7.1492	7.735710000000001
12 h after light	7.496673333333333	7.233569999999999	7.8813699999999995
4 h after dark	7.2554799999999995	7.069560000000001	7.366639999999999
8 h after dark	7.139763333333334	6.94943	7.33575
12 h after dark	7.15568	6.828239999999999	7.508610000000001