condition	mean	min	max
4 h after light	6.937406666666667	6.7681	7.23291
8 h after light	6.7122633333333335	6.48846	6.92325
12 h after light	6.722833333333334	6.643680000000001	6.84359
4 h after dark	6.57925	6.54216	6.64802
8 h after dark	6.765976666666666	6.50916	6.9193
12 h after dark	6.72607	6.6233699999999995	6.882630000000001