condition mean min max ZT0-3 301.55 301.55 301.55 ZT4-7 138.1 138.1 138.1 ZT8-11 226.55 226.55 226.55 ZT12-15 209.45 209.45 209.45 ZT16-19 206.95 206.95 206.95 ZT20-23 218.95 218.95 218.95