condition mean min max ZT0-3 2213.85 2213.85 2213.85 ZT4-7 1415.3 1415.3 1415.3 ZT8-11 2068.7 2068.7 2068.7 ZT12-15 1425.75 1425.75 1425.75 ZT16-19 313.05 313.05 313.05 ZT20-23 661.9 661.9 661.9