condition mean min max ZT0-3 44.45975 41.7599 47.1596 ZT4-7 16.69405 16.69405 16.69405 ZT8-11 14.44775 14.44775 14.44775 ZT12-15 0 0 0 ZT16-19 26.095999999999997 26.095999999999997 26.095999999999997 ZT20-23 34.6391 34.6391 34.6391