condition	mean	min	max
4 h after light	7.965199999999999	7.7679	8.13905
8 h after light	8.119033333333332	7.909089999999999	8.37839
12 h after light	8.013746666666666	7.676260000000001	8.36305
4 h after dark	7.9652433333333335	7.82302	8.15623
8 h after dark	7.945206666666667	7.803160000000001	8.03955
12 h after dark	8.1394	7.94583	8.37936