condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.03284445 0.03284445 0.03284445 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.03178335 0.03178335 0.03178335 ZT20-23 0.0 0.0 0.0