condition mean min max ZT0-3 366.4 366.4 366.4 ZT4-7 100.0 100.0 100.0 ZT8-11 121.4 121.4 121.4 ZT12-15 144.7 144.7 144.7 ZT16-19 250.95 250.95 250.95 ZT20-23 393.9 393.9 393.9