condition mean min max ZT0-3 0.07177598333333333 0.04650315 0.09639375 ZT4-7 0.06908639999999999 0.06908639999999999 0.06908639999999999 ZT8-11 0.9572605000000001 0.9572605000000001 0.9572605000000001 ZT12-15 0.5498460000000001 0.4384555 0.6612365 ZT16-19 0.361993 0.361993 0.361993 ZT20-23 0.1286705 0.1286705 0.1286705