condition	mean	min	max
0 h after light	9.097304999999999	9.05744	9.13717
4 h after light	6.56789	6.07481	7.06097
8 h after light	7.74295	6.8931	8.5928
4 h after dark	9.539175	9.48823	9.59012
8 h after dark	7.30206	7.28999	7.31413
12 h after dark	8.25371	7.25349	9.25393