condition mean min max ZT0-3 0.03419493333333334 0.03419493333333334 0.03419493333333334 ZT4-7 0.04670105 0.04670105 0.04670105 ZT8-11 0.00373085 0.00373085 0.00373085 ZT12-15 0.064654 0.064654 0.064654 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0