condition mean min max ZT0-3 11.056000000000001 11.056000000000001 11.056000000000001 ZT4-7 10.2043 10.2043 10.2043 ZT8-11 10.3128 10.3128 10.3128 ZT12-15 10.041005 10.041005 10.041005 ZT16-19 10.112755 10.112755 10.112755 ZT20-23 10.5511 10.5511 10.5511