condition	mean	min	max
0 h after light	8.77329	8.73425	8.81233
4 h after light	11.37201	9.90322	12.8408
8 h after light	6.263260000000001	6.04884	6.47768
4 h after dark	4.60621	3.73762	5.4748
8 h after dark	7.6243099999999995	6.63594	8.61268
12 h after dark	8.611775	7.69108	9.53247