condition mean min max ZT0-3 128.6 128.6 128.6 ZT4-7 138.9 138.9 138.9 ZT8-11 77.35 77.35 77.35 ZT12-15 100.55000000000001 100.55000000000001 100.55000000000001 ZT16-19 99.1 99.1 99.1 ZT20-23 133.45 133.45 133.45