condition mean min max ZT0-3 88.06066369583334 78.47412048500001 97.64720690666667 ZT4-7 122.63489899999999 116.4129425 128.8568555 ZT8-11 122.84646215 121.7814621 123.91146219999999 ZT12-15 112.290214435 101.91259130333333 122.66783756666666 ZT16-19 86.22512248 82.40408648333333 90.04615847666666 ZT20-23 77.59896829333334 76.77618933333333 78.42174725333334