condition mean min max ZT0-3 948.55 948.55 948.55 ZT4-7 894.7 894.7 894.7 ZT8-11 847.7 847.7 847.7 ZT12-15 696.9 696.9 696.9 ZT16-19 815.45 815.45 815.45 ZT20-23 865.95 865.95 865.95