condition mean min max ZT0-3 294.3745 294.3745 294.3745 ZT4-7 519.9725000000001 519.9725000000001 519.9725000000001 ZT8-11 305.4285 305.4285 305.4285 ZT12-15 240.808 240.808 240.808 ZT16-19 177.817 177.817 177.817 ZT20-23 199.08249999999998 199.08249999999998 199.08249999999998