condition mean min max ZT0-3 71.9660230575 28.821836615 115.1102095 ZT4-7 26.644434943 16.127912401 37.160957485 ZT8-11 81.69921263999998 67.552883555 95.84554172499999 ZT12-15 100.49410643499999 96.92431957 104.0638933 ZT16-19 85.5105598625 80.71585331 90.305266415 ZT20-23 112.44073664750002 97.58945514500002 127.29201815