condition mean min max ZT0-3 41.8865 34.9395 48.8335 ZT4-7 56.0129 56.0129 56.0129 ZT8-11 88.74345 88.74345 88.74345 ZT12-15 0 0 0 ZT16-19 111.9331 111.9331 111.9331 ZT20-23 73.6261 73.6261 73.6261