condition	mean	min	max
4 h after light	8.36405	7.491860000000001	8.86225
8 h after light	7.795603333333334	6.594930000000001	8.42947
12 h after light	7.798493333333333	6.79565	8.33133
4 h after dark	8.123426666666667	7.28264	8.83948
8 h after dark	8.87679	7.977539999999999	9.49901
12 h after dark	9.44537	8.673060000000001	9.91258