condition	mean	min	max
4 h after light	8.568043333333334	8.53042	8.60665
8 h after light	8.579326666666667	8.55614	8.61398
12 h after light	8.62173	8.49725	8.77758
4 h after dark	8.43014	8.29957	8.61329
8 h after dark	8.362260000000001	8.260810000000001	8.4402
12 h after dark	8.399763333333333	8.27214	8.53246