condition mean min max ZT0-3 9015.1 9015.1 9015.1 ZT4-7 6500.0 6500.0 6500.0 ZT8-11 6198.05 6198.05 6198.05 ZT12-15 5687.6 5687.6 5687.6 ZT16-19 7574.1 7574.1 7574.1 ZT20-23 8663.55 8663.55 8663.55