condition mean min max ZT0-3 6286.35 6286.35 6286.35 ZT4-7 8019.9 8019.9 8019.9 ZT8-11 7915.4 7915.4 7915.4 ZT12-15 7571.45 7571.45 7571.45 ZT16-19 5999.6 5999.6 5999.6 ZT20-23 5777.299999999999 5777.299999999999 5777.299999999999