condition	mean	min	max
4 h after light	6.99233	6.90061	7.11177
8 h after light	6.78756	6.6639800000000005	6.86044
12 h after light	6.695786666666667	6.6134	6.84077
4 h after dark	6.83133	6.8049	6.86868
8 h after dark	7.262086666666666	6.97842	7.435919999999999
12 h after dark	7.355936666666667	7.1854	7.54955