condition mean min max ZT0-3 0.9147984062499999 0.7823787495 1.0472180629999999 ZT4-7 1.922273272 1.5465086215 2.2980379225 ZT8-11 7.92051160725 4.9500965765 10.890926638 ZT12-15 14.8879879575 14.429787005000001 15.346188909999999 ZT16-19 12.947328067499999 12.672702285 13.22195385 ZT20-23 9.18403014075 8.6079060165 9.760154265