condition mean min max ZT0-3 0.24377375 0.123353 0.36419450000000003 ZT4-7 0.616232 0.616232 0.616232 ZT8-11 0.366116 0.366116 0.366116 ZT12-15 0 0 0 ZT16-19 0.8494729999999999 0.8494729999999999 0.8494729999999999 ZT20-23 0.245022 0.245022 0.245022