condition mean min max ZT0-3 0.3075535 0.3075535 0.3075535 ZT4-7 0.4260545 0.4260545 0.4260545 ZT8-11 0.324508 0.324508 0.324508 ZT12-15 0.281786 0.281786 0.281786 ZT16-19 0.223194 0.223194 0.223194 ZT20-23 0.369081 0.369081 0.369081