condition	mean	min	max
4 h after light	8.710230000000001	8.35708	9.08393
8 h after light	9.030503333333332	8.84489	9.180019999999999
12 h after light	9.149673333333334	8.99381	9.24745
4 h after dark	8.367103333333333	7.817589999999999	8.66116
8 h after dark	7.91797	7.4928	8.38315
12 h after dark	7.836693333333334	7.54126	8.23577