condition mean min max ZT0-3 319.6 319.6 319.6 ZT4-7 330.1 330.1 330.1 ZT8-11 278.35 278.35 278.35 ZT12-15 300.15 300.15 300.15 ZT16-19 355.15 355.15 355.15 ZT20-23 306.20000000000005 306.20000000000005 306.20000000000005