condition mean min max ZT0-3 1154.75 1154.75 1154.75 ZT4-7 1215.8 1215.8 1215.8 ZT8-11 1281.0 1281.0 1281.0 ZT12-15 1256.6 1256.6 1256.6 ZT16-19 1184.1 1184.1 1184.1 ZT20-23 1046.05 1046.05 1046.05