condition mean min max ZT0-3 1.2116745 1.2116745 1.2116745 ZT4-7 1.4106049999999999 1.4106049999999999 1.4106049999999999 ZT8-11 1.4144105 1.4144105 1.4144105 ZT12-15 1.50232 1.50232 1.50232 ZT16-19 0.5655105 0.5655105 0.5655105 ZT20-23 2.82536 2.82536 2.82536