condition	mean	min	max
4 h after light	6.004686666666666	5.960369999999999	6.03525
8 h after light	6.0966700000000005	6.04824	6.16553
12 h after light	5.869623333333333	5.71782	6.09374
4 h after dark	5.993256666666667	5.95516	6.041980000000001
8 h after dark	5.808186666666667	5.67299	5.93484
12 h after dark	5.91988	5.80227	6.0176300000000005