condition mean min max ZT0-3 3883.1499999999996 3883.1499999999996 3883.1499999999996 ZT4-7 8821.1 8821.1 8821.1 ZT8-11 10083.15 10083.15 10083.15 ZT12-15 8589.05 8589.05 8589.05 ZT16-19 6267.95 6267.95 6267.95 ZT20-23 5208.45 5208.45 5208.45