condition mean min max ZT0-3 0.0200164535 0.0 0.040032907 ZT4-7 0.10915863175 0.10482186199999999 0.11349540150000001 ZT8-11 0.15038092800000002 0.072725593 0.22803626300000002 ZT12-15 0.40967611775 0.257334381 0.5620178545 ZT16-19 0.84636210975 0.594021313 1.0987029065 ZT20-23 1.0148519572499999 0.6983253235 1.331378591