condition mean min max ZT0-3 140.933 140.933 140.933 ZT4-7 141.7415 141.7415 141.7415 ZT8-11 136.5965 136.5965 136.5965 ZT12-15 102.465 102.465 102.465 ZT16-19 161.9195 161.9195 161.9195 ZT20-23 128.4195 128.4195 128.4195