condition mean min max ZT0-3 0.14112550000000001 0.0 0.28225100000000003 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.076429 0.0 0.152858 ZT20-23 0 0 0