condition	mean	min	max
4 h after light	8.021466666666667	7.82302	8.26547
8 h after light	8.171566666666667	7.8352	8.448039999999999
12 h after light	8.148430000000001	7.984260000000001	8.44645
4 h after dark	8.257620000000001	8.02715	8.516810000000001
8 h after dark	8.17602	8.051919999999999	8.35923
12 h after dark	8.052496666666666	7.947839999999999	8.183819999999999