condition	mean	min	max
4 h after light	7.456775	7.04635	7.8672
8 h after light	7.82285	7.77007	7.87563
12 h after light	8.21464	7.97293	8.45635
4 h after dark	8.896015	8.36856	9.42347
8 h after dark	8.353784999999998	8.01897	8.6886
12 h after dark	8.82841	8.80412	8.8527