condition	mean	min	max
4 h after light	7.177373333333334	6.79927	7.36802
8 h after light	7.218946666666667	6.94885	7.38917
12 h after light	7.35265	7.02473	7.53378
4 h after dark	7.651273333333332	7.3360899999999996	7.906789999999999
8 h after dark	7.263319999999999	6.9488199999999996	7.54472
12 h after dark	7.365220000000001	6.9903	7.617380000000001