condition mean min max ZT0-3 149.91699999999997 149.91699999999997 149.91699999999997 ZT4-7 157.055 157.055 157.055 ZT8-11 116.221 116.221 116.221 ZT12-15 84.62215 84.62215 84.62215 ZT16-19 102.25489999999999 102.25489999999999 102.25489999999999 ZT20-23 122.552 122.552 122.552