condition mean min max ZT0-3 75.05 75.05 75.05 ZT4-7 65.4 65.4 65.4 ZT8-11 99.8 99.8 99.8 ZT12-15 97.75 97.75 97.75 ZT16-19 72.55 72.55 72.55 ZT20-23 71.55 71.55 71.55