condition mean min max ZT0-3 100.7939 100.7939 100.7939 ZT4-7 138.7425 138.7425 138.7425 ZT8-11 117.5335 117.5335 117.5335 ZT12-15 52.942 52.942 52.942 ZT16-19 58.7791 58.7791 58.7791 ZT20-23 78.8058 78.8058 78.8058