condition mean min max ZT0-3 323.65 323.65 323.65 ZT4-7 1154.3 1154.3 1154.3 ZT8-11 1465.4 1465.4 1465.4 ZT12-15 1116.65 1116.65 1116.65 ZT16-19 474.15 474.15 474.15 ZT20-23 303.95000000000005 303.95000000000005 303.95000000000005