condition mean min max ZT0-3 0.04413963333333334 0.0 0.06696525 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.01622555 0.0 0.0324511 ZT16-19 0.0314414 0.0314414 0.0314414 ZT20-23 0.0341899 0.0341899 0.0341899