condition mean min max ZT0-3 2244.2 2244.2 2244.2 ZT4-7 1495.9 1495.9 1495.9 ZT8-11 1474.3 1474.3 1474.3 ZT12-15 1565.55 1565.55 1565.55 ZT16-19 1939.1999999999998 1939.1999999999998 1939.1999999999998 ZT20-23 2696.25 2696.25 2696.25