condition mean min max ZT0-3 161.3605 161.3605 161.3605 ZT4-7 129.329 129.329 129.329 ZT8-11 113.1895 113.1895 113.1895 ZT12-15 128.514 128.514 128.514 ZT16-19 158.0215 158.0215 158.0215 ZT20-23 159.0815 159.0815 159.0815