condition mean min max ZT0-3 0.05797477499999999 0.02917545 0.08677409999999999 ZT4-7 0.976202 0.976202 0.976202 ZT8-11 0.3785775 0.3785775 0.3785775 ZT12-15 0 0 0 ZT16-19 0.0863015 0.0863015 0.0863015 ZT20-23 0.0 0.0 0.0