condition mean min max ZT0-3 97.9 97.9 97.9 ZT4-7 90.3 90.3 90.3 ZT8-11 122.05 122.05 122.05 ZT12-15 105.6 105.6 105.6 ZT16-19 103.05 103.05 103.05 ZT20-23 83.8 83.8 83.8