condition	mean	min	max
4 h after light	6.12969	5.99709	6.348990000000001
8 h after light	6.2872	5.98134	6.73756
12 h after light	6.005896666666667	5.79004	6.21307
4 h after dark	5.991743333333334	5.74603	6.24437
8 h after dark	6.031503333333333	5.94539	6.10122
12 h after dark	6.25188	5.8617099999999995	6.84972