condition mean min max ZT0-3 110.85050000000001 110.85050000000001 110.85050000000001 ZT4-7 107.40700000000001 107.40700000000001 107.40700000000001 ZT8-11 86.81515 86.81515 86.81515 ZT12-15 88.37995000000001 88.37995000000001 88.37995000000001 ZT16-19 89.8339 89.8339 89.8339 ZT20-23 103.923 103.923 103.923