condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.18315215566666668 0.0 0.36630431133333335 ZT12-15 0.0 0.0 0.0 ZT16-19 0.171806737 0.07337869500000001 0.270234779 ZT20-23 0.09097419100000001 0.087508541 0.09443984100000001