condition mean min max ZT0-3 0.13851783333333334 0.0 0.4155535 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0959365 0.0 0.191873 ZT16-19 0.365213 0.365213 0.365213 ZT20-23 0.0 0.0 0.0