condition	mean	min	max
4 h after light	9.00642	8.92015	9.0675
8 h after light	9.24851	9.10872	9.3613
12 h after light	9.558243333333333	9.539480000000001	9.56855
4 h after dark	9.61726	9.424539999999999	9.76019
8 h after dark	9.61877	9.53267	9.67917
12 h after dark	9.283323333333334	9.16721	9.352089999999999