condition mean min max ZT0-3 0.988219 0.988219 0.988219 ZT4-7 0.7850635 0.7850635 0.7850635 ZT8-11 0.7012785 0.7012785 0.7012785 ZT12-15 0.902321 0.902321 0.902321 ZT16-19 0.8882915 0.8882915 0.8882915 ZT20-23 0.7642260000000001 0.7642260000000001 0.7642260000000001