condition mean min max ZT0-3 122.2 122.2 122.2 ZT4-7 107.1 107.1 107.1 ZT8-11 126.0 126.0 126.0 ZT12-15 112.19999999999999 112.19999999999999 112.19999999999999 ZT16-19 143.65 143.65 143.65 ZT20-23 121.95 121.95 121.95