condition mean min max ZT0-3 114.0 114.0 114.0 ZT4-7 71.9 71.9 71.9 ZT8-11 53.85 53.85 53.85 ZT12-15 73.5 73.5 73.5 ZT16-19 95.65 95.65 95.65 ZT20-23 95.55000000000001 95.55000000000001 95.55000000000001