condition mean min max ZT0-3 0.03567495 0.0 0.0713499 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.09317065000000001 0.0 0.18634130000000002 ZT16-19 0.1473254 0.1473254 0.1473254 ZT20-23 0.0 0.0 0.0