condition mean min max ZT0-3 82.1 82.1 82.1 ZT4-7 119.1 119.1 119.1 ZT8-11 83.85 83.85 83.85 ZT12-15 61.95 61.95 61.95 ZT16-19 83.75 83.75 83.75 ZT20-23 97.55000000000001 97.55000000000001 97.55000000000001