condition mean min max ZT0-3 141.2135 138.6775 143.7495 ZT4-7 110.40605 110.40605 110.40605 ZT8-11 79.77465000000001 79.77465000000001 79.77465000000001 ZT12-15 0 0 0 ZT16-19 121.257 121.257 121.257 ZT20-23 121.9965 121.9965 121.9965