condition mean min max ZT0-3 312.45 312.45 312.45 ZT4-7 305.4 305.4 305.4 ZT8-11 373.95000000000005 373.95000000000005 373.95000000000005 ZT12-15 397.55 397.55 397.55 ZT16-19 416.75 416.75 416.75 ZT20-23 389.55 389.55 389.55