condition mean min max ZT0-3 120.3 120.3 120.3 ZT4-7 144.8 144.8 144.8 ZT8-11 164.8 164.8 164.8 ZT12-15 145.3 145.3 145.3 ZT16-19 149.3 149.3 149.3 ZT20-23 166.45 166.45 166.45