condition mean min max ZT0-3 128.343306 128.343306 128.343306 ZT4-7 76.08029300000001 76.08029300000001 76.08029300000001 ZT8-11 101.41579300000001 101.41579300000001 101.41579300000001 ZT12-15 97.206909 97.206909 97.206909 ZT16-19 102.081157 102.081157 102.081157 ZT20-23 105.752249 105.752249 105.752249