condition	mean	min	max
4 h after light	8.3529415	8.025216	8.680667
8 h after light	9.054751499999998	8.521325	9.588178
12 h after light	8.5957045	7.964726	9.226683
4 h after dark	8.693725	8.690364	8.697086
8 h after dark	9.135691000000001	9.058847	9.212535
12 h after dark	8.972078	8.972078	8.972078