condition mean min max ZT0-3 5839.450000000001 5839.450000000001 5839.450000000001 ZT4-7 4805.7 4805.7 4805.7 ZT8-11 4812.4 4812.4 4812.4 ZT12-15 5332.75 5332.75 5332.75 ZT16-19 5998.2 5998.2 5998.2 ZT20-23 6161.25 6161.25 6161.25