condition mean min max ZT0-3 0.6421049665 0.10024769300000001 1.18396224 ZT4-7 0.13024301 0.10989430900000001 0.150591711 ZT8-11 0.08157613650000001 0.0 0.16315227300000001 ZT12-15 1.9376460675 1.553210918 2.322081217 ZT16-19 3.27366725675 2.8228729765 3.7244615370000003 ZT20-23 2.7847562135 2.5611951465000002 3.0083172805