condition mean min max ZT0-3 363.45 363.45 363.45 ZT4-7 367.7 367.7 367.7 ZT8-11 278.2 278.2 278.2 ZT12-15 253.39999999999998 253.39999999999998 253.39999999999998 ZT16-19 393.2 393.2 393.2 ZT20-23 373.4 373.4 373.4