condition	mean	min	max
4 h after light	7.0210099999999995	6.99655	7.05629
8 h after light	7.43014	7.22885	7.72668
12 h after light	7.239063333333333	7.168139999999999	7.30961
4 h after dark	7.0644833333333334	6.89001	7.318239999999999
8 h after dark	6.861736666666666	6.685339999999999	7.16954
12 h after dark	6.69614	6.58845	6.80018