condition	mean	min	max
4 h after light	6.79578	6.49391	6.95195
8 h after light	6.076453333333333	6.000369999999999	6.17185
12 h after light	5.93625	5.79664	6.0551699999999995
4 h after dark	5.78596	5.74472	5.82134
8 h after dark	5.957036666666667	5.90614	6.0155400000000006
12 h after dark	6.141303333333333	5.937930000000001	6.29577