condition mean min max ZT0-3 1166.05 1166.05 1166.05 ZT4-7 1414.5 1414.5 1414.5 ZT8-11 1106.75 1106.75 1106.75 ZT12-15 1063.75 1063.75 1063.75 ZT16-19 1049.45 1049.45 1049.45 ZT20-23 1083.45 1083.45 1083.45