condition	mean	min	max
4 h after light	8.69218	8.14498	9.11497
8 h after light	8.862580000000001	8.38	9.18628
12 h after light	9.00965	8.7165	9.24349
4 h after dark	8.984386666666666	8.592039999999999	9.39958
8 h after dark	9.012563333333333	8.48896	9.2822
12 h after dark	9.088463333333333	8.69571	9.32323