condition mean min max ZT0-3 2844.1499999999996 2844.1499999999996 2844.1499999999996 ZT4-7 1790.1 1790.1 1790.1 ZT8-11 2137.55 2137.55 2137.55 ZT12-15 2509.2 2509.2 2509.2 ZT16-19 2822.75 2822.75 2822.75 ZT20-23 3360.8 3360.8 3360.8