condition	mean	min	max
4 h after light	7.803496666666667	7.69463	7.8978
8 h after light	7.439726666666666	7.1989399999999995	7.5958
12 h after light	7.54627	7.432460000000001	7.718139999999999
4 h after dark	7.685596666666667	7.63315	7.74291
8 h after dark	7.959693333333334	7.80876	8.06338
12 h after dark	7.9358200000000005	7.892010000000001	8.00276