condition mean min max ZT0-3 2968.05 2968.05 2968.05 ZT4-7 927.0 927.0 927.0 ZT8-11 1341.25 1341.25 1341.25 ZT12-15 1428.45 1428.45 1428.45 ZT16-19 2660.1499999999996 2660.1499999999996 2660.1499999999996 ZT20-23 3045.1499999999996 3045.1499999999996 3045.1499999999996