condition mean min max ZT0-3 170.45 170.45 170.45 ZT4-7 109.2 109.2 109.2 ZT8-11 105.75 105.75 105.75 ZT12-15 135.6 135.6 135.6 ZT16-19 141.85000000000002 141.85000000000002 141.85000000000002 ZT20-23 175.0 175.0 175.0