condition mean min max ZT0-3 58.362103825 37.59662994 79.12757771 ZT4-7 120.23263990000001 112.6748752 127.7904046 ZT8-11 128.59336325 122.4269577 134.75976880000002 ZT12-15 126.05535808333333 123.67910423333333 128.43161193333333 ZT16-19 108.068097265 103.69576453 112.44043 ZT20-23 89.77710845666667 77.85187131666666 101.70234559666666