condition	mean	min	max
4 h after light	7.09847	7.01796	7.17905
8 h after light	7.030286666666667	7.017810000000001	7.0533600000000005
12 h after light	6.884253333333333	6.780480000000001	6.943389999999999
4 h after dark	7.02653	6.855810000000001	7.12185
8 h after dark	6.887623333333333	6.77101	6.97699
12 h after dark	6.971396666666667	6.83559	7.10659