condition mean min max ZT0-3 184.15 184.15 184.15 ZT4-7 153.0 153.0 153.0 ZT8-11 117.4 117.4 117.4 ZT12-15 144.85000000000002 144.85000000000002 144.85000000000002 ZT16-19 138.3 138.3 138.3 ZT20-23 152.05 152.05 152.05