condition	mean	min	max
4 h after light	7.630383333333333	7.494389999999999	7.832489999999999
8 h after light	7.712533333333333	7.65135	7.83011
12 h after light	7.74603	7.62175	7.888660000000001
4 h after dark	7.5783933333333335	7.44112	7.70758
8 h after dark	7.54662	7.49516	7.6425600000000005
12 h after dark	7.434163333333333	7.26912	7.63853