condition mean min max ZT0-3 114.70349999999999 114.70349999999999 114.70349999999999 ZT4-7 41.31895 41.31895 41.31895 ZT8-11 403.8555 403.8555 403.8555 ZT12-15 368.62800000000004 368.62800000000004 368.62800000000004 ZT16-19 438.33299999999997 438.33299999999997 438.33299999999997 ZT20-23 229.4825 229.4825 229.4825