condition mean min max ZT0-3 0.128625 0.10348850000000001 0.1537615 ZT4-7 0.103648 0.103648 0.103648 ZT8-11 0.520343 0.520343 0.520343 ZT12-15 0 0 0 ZT16-19 0.35622200000000004 0.35622200000000004 0.35622200000000004 ZT20-23 0.102262 0.102262 0.102262