condition mean min max ZT0-3 120.52099999999999 120.52099999999999 120.52099999999999 ZT4-7 80.62219999999999 80.62219999999999 80.62219999999999 ZT8-11 86.18375 86.18375 86.18375 ZT12-15 78.923 78.923 78.923 ZT16-19 101.82905 101.82905 101.82905 ZT20-23 105.6385 105.6385 105.6385