condition mean min max ZT0-3 124.316 124.316 124.316 ZT4-7 106.7612 106.7612 106.7612 ZT8-11 140.3935 140.3935 140.3935 ZT12-15 145.8555 145.8555 145.8555 ZT16-19 134.827 134.827 134.827 ZT20-23 123.2535 123.2535 123.2535