condition	mean	min	max
4 h after light	7.9178766666666665	7.84248	7.99527
8 h after light	7.93694	7.89	7.99832
12 h after light	7.1126	7.054639999999999	7.1932100000000005
4 h after dark	7.0788	6.90005	7.30775
8 h after dark	7.068923333333333	6.91298	7.2157100000000005
12 h after dark	7.4329	7.2495	7.63275