condition mean min max ZT0-3 174.043 174.043 174.043 ZT4-7 193.5995 193.5995 193.5995 ZT8-11 107.235 107.235 107.235 ZT12-15 143.782 143.782 143.782 ZT16-19 103.86229999999999 103.86229999999999 103.86229999999999 ZT20-23 139.033 139.033 139.033