condition	mean	min	max
4 h after light	8.15565	7.6384300000000005	8.57393
8 h after light	8.712183333333334	8.20771	9.17842
12 h after light	8.289470000000001	7.601260000000001	8.9108
4 h after dark	9.142336666666667	8.55834	9.63517
8 h after dark	8.955729999999999	8.392439999999999	9.43025
12 h after dark	8.801276666666666	7.99154	9.409839999999999