condition mean min max ZT0-3 1020.45 1020.45 1020.45 ZT4-7 885.4 885.4 885.4 ZT8-11 963.4 963.4 963.4 ZT12-15 984.8499999999999 984.8499999999999 984.8499999999999 ZT16-19 1555.85 1555.85 1555.85 ZT20-23 1313.7 1313.7 1313.7