condition	mean	min	max
4 h after light	7.117046666666666	7.04352	7.231039999999999
8 h after light	6.89984	6.7976	7.0141
12 h after light	7.04507	6.979419999999999	7.10847
4 h after dark	7.05978	6.97433	7.19897
8 h after dark	7.032143333333333	6.97357	7.101489999999999
12 h after dark	7.062893333333333	7.00784	7.13134