condition mean min max ZT0-3 113.15 113.15 113.15 ZT4-7 64.0 64.0 64.0 ZT8-11 53.45 53.45 53.45 ZT12-15 103.0 103.0 103.0 ZT16-19 113.4 113.4 113.4 ZT20-23 117.85 117.85 117.85