condition	mean	min	max
4 h after light	6.439613333333333	6.05729	6.75225
8 h after light	6.745456666666667	6.47653	6.9392
12 h after light	7.3313299999999995	7.249339999999999	7.43957
4 h after dark	6.998066666666666	6.8437600000000005	7.27257
8 h after dark	6.8455699999999995	6.68849	7.159669999999999
12 h after dark	6.649039999999999	6.51645	6.79723