condition mean min max ZT0-3 234.35 234.35 234.35 ZT4-7 205.4 205.4 205.4 ZT8-11 189.85 189.85 189.85 ZT12-15 205.85 205.85 205.85 ZT16-19 209.05 209.05 209.05 ZT20-23 295.5 295.5 295.5