condition mean min max ZT0-3 182.7 182.7 182.7 ZT4-7 147.9 147.9 147.9 ZT8-11 80.1 80.1 80.1 ZT12-15 106.55000000000001 106.55000000000001 106.55000000000001 ZT16-19 105.5 105.5 105.5 ZT20-23 143.1 143.1 143.1