condition mean min max ZT0-3 211.75 211.75 211.75 ZT4-7 933.4 933.4 933.4 ZT8-11 895.5999999999999 895.5999999999999 895.5999999999999 ZT12-15 672.3 672.3 672.3 ZT16-19 358.15 358.15 358.15 ZT20-23 152.85 152.85 152.85