condition mean min max ZT0-3 1064.45 1064.45 1064.45 ZT4-7 1221.3 1221.3 1221.3 ZT8-11 1065.4 1065.4 1065.4 ZT12-15 1109.7 1109.7 1109.7 ZT16-19 1061.8 1061.8 1061.8 ZT20-23 1063.1 1063.1 1063.1