condition	mean	min	max
4 h after light	7.712280000000001	7.58892	7.792110000000001
8 h after light	8.084249999999999	7.842039999999999	8.29311
12 h after light	8.038946666666666	7.97425	8.13623
4 h after dark	7.8592933333333335	7.6956	8.063369999999999
8 h after dark	7.776763333333334	7.615810000000001	7.94372
12 h after dark	7.718923333333333	7.58436	7.793089999999999