condition mean min max ZT0-3 101.30000000000001 101.30000000000001 101.30000000000001 ZT4-7 121.2 121.2 121.2 ZT8-11 105.9 105.9 105.9 ZT12-15 96.75 96.75 96.75 ZT16-19 97.45 97.45 97.45 ZT20-23 128.4 128.4 128.4