condition mean min max ZT0-3 215.1 215.1 215.1 ZT4-7 262.1 262.1 262.1 ZT8-11 241.15 241.15 241.15 ZT12-15 265.5 265.5 265.5 ZT16-19 325.3 325.3 325.3 ZT20-23 249.6 249.6 249.6