condition	mean	min	max
4 h after light	9.580656666666666	9.4571	9.77984
8 h after light	9.239303333333334	9.05142	9.418569999999999
12 h after light	9.2454	9.063080000000001	9.35365
4 h after dark	8.984513333333332	8.92361	9.10464
8 h after dark	9.284056666666668	9.185410000000001	9.391210000000001
12 h after dark	9.612070000000001	9.53859	9.662410000000001