condition mean min max ZT0-3 482.65 482.65 482.65 ZT4-7 440.4 440.4 440.4 ZT8-11 335.45 335.45 335.45 ZT12-15 365.7 365.7 365.7 ZT16-19 375.20000000000005 375.20000000000005 375.20000000000005 ZT20-23 384.75 384.75 384.75