condition mean min max ZT0-3 90.70251666666667 63.74065 122.309 ZT4-7 38.0347 38.0347 38.0347 ZT8-11 33.1875 33.1875 33.1875 ZT12-15 103.39599999999999 99.67869999999999 107.1133 ZT16-19 95.82085000000001 95.82085000000001 95.82085000000001 ZT20-23 118.35050000000001 118.35050000000001 118.35050000000001