condition mean min max ZT0-3 614.4955 614.4955 614.4955 ZT4-7 541.4355 541.4355 541.4355 ZT8-11 443.6755 443.6755 443.6755 ZT12-15 469.5955 469.5955 469.5955 ZT16-19 568.444 568.444 568.444 ZT20-23 613.0195 613.0195 613.0195