condition mean min max ZT0-3 18.368225000000002 14.1705 22.56595 ZT4-7 239.3125 239.3125 239.3125 ZT8-11 35.946650000000005 35.946650000000005 35.946650000000005 ZT12-15 0 0 0 ZT16-19 18.32465 18.32465 18.32465 ZT20-23 38.5368 38.5368 38.5368