condition	mean	min	max
4 h after light	8.65677	8.46546	8.7734
8 h after light	8.42597	8.057269999999999	8.73868
12 h after light	8.29519	8.16225	8.41409
4 h after dark	8.514663333333333	8.4153	8.65697
8 h after dark	8.986316666666667	8.72602	9.45712
12 h after dark	9.981553333333332	9.94599	10.02