condition mean min max ZT0-3 0.40598979925 0.1250670365 0.6869125620000001 ZT4-7 0.02936278975 0.018321314 0.0404042655 ZT8-11 0.3465527855 0.0661773715 0.6269281995 ZT12-15 0.53364176575 0.389426807 0.6778567245 ZT16-19 0.204695285 0.1716240255 0.2377665445 ZT20-23 0.164877612 0.127471234 0.20228399