condition	mean	min	max
0 h after light	7.126835	7.02461	7.22906
4 h after light	7.183325	6.18152	8.18513
8 h after light	9.189540000000001	8.77576	9.60332
4 h after dark	9.83714	8.65518	11.0191
8 h after dark	9.567695	9.38679	9.7486
12 h after dark	7.634035	7.42383	7.84424