condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.1046966 0.1046966 0.1046966 ZT16-19 0.1180035 0.1180035 0.1180035 ZT20-23 0.11757514999999999 0.11757514999999999 0.11757514999999999