condition mean min max ZT0-3 322.25 322.25 322.25 ZT4-7 317.8 317.8 317.8 ZT8-11 248.45 248.45 248.45 ZT12-15 273.29999999999995 273.29999999999995 273.29999999999995 ZT16-19 333.9 333.9 333.9 ZT20-23 350.75 350.75 350.75