condition	mean	min	max
4 h after light	8.317803333333334	7.8831	8.56565
8 h after light	8.546606666666667	8.21541	8.86669
12 h after light	8.58046	8.42711	8.741060000000001
4 h after dark	8.752306666666666	8.51455	9.00429
8 h after dark	8.66962	8.42773	8.90033
12 h after dark	8.66923	8.45903	8.80535