condition mean min max ZT0-3 64.85 64.85 64.85 ZT4-7 83.1 83.1 83.1 ZT8-11 105.4 105.4 105.4 ZT12-15 100.9 100.9 100.9 ZT16-19 97.4 97.4 97.4 ZT20-23 81.55000000000001 81.55000000000001 81.55000000000001