condition	mean	min	max
4 h after light	7.904086666666667	7.54121	8.22151
8 h after light	7.77237	7.691839999999999	7.87905
12 h after light	7.7351366666666665	7.267689999999999	8.07434
4 h after dark	7.757023333333334	7.62241	8.019810000000001
8 h after dark	7.90159	7.604089999999999	8.35411
12 h after dark	8.002216666666667	7.62581	8.28612