condition mean min max ZT0-3 114.36116666666666 112.539 117.52250000000001 ZT4-7 95.1928 95.1928 95.1928 ZT8-11 71.82645 71.82645 71.82645 ZT12-15 105.2857 103.66390000000001 106.9075 ZT16-19 84.31960000000001 84.31960000000001 84.31960000000001 ZT20-23 104.991 104.991 104.991