condition	mean	min	max
4 h after light	7.3652	6.9088	7.8346100000000005
8 h after light	6.935076666666666	6.65451	7.32215
12 h after light	7.795213333333333	7.49633	8.30262
4 h after dark	7.22502	6.70275	7.99448
8 h after dark	7.30796	7.158739999999999	7.49622
12 h after dark	6.887256666666667	6.4724699999999995	7.292489999999999