condition mean min max ZT0-3 139.05 139.05 139.05 ZT4-7 96.4 96.4 96.4 ZT8-11 124.05 124.05 124.05 ZT12-15 81.85 81.85 81.85 ZT16-19 124.30000000000001 124.30000000000001 124.30000000000001 ZT20-23 218.4 218.4 218.4