condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02561675 0.02561675 0.02561675 ZT8-11 0.0 0.0 0.0 ZT12-15 0.01345235 0.0 0.0269047 ZT16-19 0.0 0.0 0.0 ZT20-23 0.02834635 0.02834635 0.02834635