condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.15185711575 0.0 0.3037142315 ZT12-15 0.295758002 0.2743058015 0.3172102025 ZT16-19 0.282667487 0.0 0.565334974 ZT20-23 0.0 0.0 0.0