condition mean min max ZT0-3 78.3322351025 68.081298445 88.58317176 ZT4-7 10.21217260575 7.3289313205 13.095413891000002 ZT8-11 12.93443049875 8.635458353 17.2334026445 ZT12-15 14.657656397 12.158595255 17.156717539 ZT16-19 17.2261649475 14.291336905 20.16099299 ZT20-23 32.791439062500004 31.502856625 34.0800215