condition mean min max ZT0-3 2495.0 2495.0 2495.0 ZT4-7 2501.2 2501.2 2501.2 ZT8-11 2352.75 2352.75 2352.75 ZT12-15 2444.9 2444.9 2444.9 ZT16-19 2631.25 2631.25 2631.25 ZT20-23 2661.45 2661.45 2661.45