condition	mean	min	max
4 h after light	7.916763333333334	7.63793	8.06541
8 h after light	8.283249999999999	8.041269999999999	8.41889
12 h after light	8.408116666666666	8.34025	8.53973
4 h after dark	8.624963333333334	8.45545	8.82559
8 h after dark	8.45831	8.40315	8.545630000000001
12 h after dark	8.479353333333334	8.38296	8.54828