condition mean min max ZT0-3 1896.65 1896.65 1896.65 ZT4-7 2542.8 2542.8 2542.8 ZT8-11 2503.05 2503.05 2503.05 ZT12-15 1872.3999999999999 1872.3999999999999 1872.3999999999999 ZT16-19 1705.55 1705.55 1705.55 ZT20-23 1687.4499999999998 1687.4499999999998 1687.4499999999998