condition mean min max ZT0-3 119.464724 119.464724 119.464724 ZT4-7 91.306158 91.306158 91.306158 ZT8-11 91.07535 91.07535 91.07535 ZT12-15 98.6108375 98.6108375 98.6108375 ZT16-19 85.058229 85.058229 85.058229 ZT20-23 96.31415150000001 96.31415150000001 96.31415150000001