condition mean min max ZT0-3 601.696 601.696 601.696 ZT4-7 531.8205 531.8205 531.8205 ZT8-11 470.1095 470.1095 470.1095 ZT12-15 474.698 474.698 474.698 ZT16-19 534.482 534.482 534.482 ZT20-23 641.09 641.09 641.09