condition	mean	min	max
4 h after light	8.2817835	7.927267	8.6363
8 h after light	8.595899	6.982426	10.209372
12 h after light	7.9358615	7.589929	8.281794
4 h after dark	8.834161	8.443971	9.224351
8 h after dark	7.557807500000001	7.038253	8.077362
12 h after dark	8.261506	8.261506	8.261506