condition	mean	min	max
4 h after light	6.181323333333333	6.06456	6.37432
8 h after light	6.171706666666667	5.82753	6.3839
12 h after light	5.8197399999999995	5.73108	5.9400699999999995
4 h after dark	6.173926666666667	5.7291099999999995	6.47995
8 h after dark	5.94556	5.87099	6.07425
12 h after dark	5.93171	5.64695	6.0828