condition mean min max ZT0-3 101.6936 101.6936 101.6936 ZT4-7 79.3867075 79.3867075 79.3867075 ZT8-11 84.8250995 84.8250995 84.8250995 ZT12-15 93.1457515 93.1457515 93.1457515 ZT16-19 104.74944049999999 104.74944049999999 104.74944049999999 ZT20-23 118.725896 118.725896 118.725896