condition	mean	min	max
4 h after light	8.099720000000001	7.00098	9.19846
8 h after light	7.469625000000001	7.28321	7.65604
12 h after light	9.166355	8.4033	9.92941
4 h after dark	10.749375	9.88185	11.6169
8 h after dark	10.760100000000001	10.1036	11.4166
12 h after dark	10.152875	9.67855	10.6272