condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0518835 0.0518835 0.0518835 ZT8-11 0.1525875 0.1525875 0.1525875 ZT12-15 0 0 0 ZT16-19 0.0502075 0.0502075 0.0502075 ZT20-23 0.0 0.0 0.0