condition mean min max ZT0-3 0.03224412975 0.0300094555 0.034478804 ZT4-7 0.04106804125 0.0384034985 0.043732584 ZT8-11 0.0131188445 0.0048570845 0.0213806045 ZT12-15 0.02013240975 0.008299355999999999 0.0319654635 ZT16-19 0.048884805999999996 0.0171618595 0.08060775249999999 ZT20-23 0.1028310385 0.098011241 0.107650836