condition mean min max ZT0-3 1024.65 1024.65 1024.65 ZT4-7 1029.2 1029.2 1029.2 ZT8-11 965.7 965.7 965.7 ZT12-15 821.45 821.45 821.45 ZT16-19 725.2 725.2 725.2 ZT20-23 734.9 734.9 734.9