condition mean min max ZT0-3 152.15 152.15 152.15 ZT4-7 14.5 14.5 14.5 ZT8-11 48.65 48.65 48.65 ZT12-15 120.9 120.9 120.9 ZT16-19 106.15 106.15 106.15 ZT20-23 135.95 135.95 135.95