condition	mean	min	max
4 h after light	5.98138	5.92521	6.0919
8 h after light	6.086196666666667	6.00403	6.15174
12 h after light	6.317986666666666	6.10694	6.5115099999999995
4 h after dark	5.7763333333333335	5.7125	5.88671
8 h after dark	6.21183	6.0980099999999995	6.27389
12 h after dark	6.821183333333333	6.74758	6.9198699999999995