condition mean min max ZT0-3 87.00475 87.00475 87.00475 ZT4-7 79.9919 79.9919 79.9919 ZT8-11 85.91355 85.91355 85.91355 ZT12-15 76.07419999999999 76.07419999999999 76.07419999999999 ZT16-19 105.39325 105.39325 105.39325 ZT20-23 87.89744999999999 87.89744999999999 87.89744999999999