condition mean min max ZT0-3 2566.55 2566.55 2566.55 ZT4-7 2247.3 2247.3 2247.3 ZT8-11 2247.45 2247.45 2247.45 ZT12-15 2522.3500000000004 2522.3500000000004 2522.3500000000004 ZT16-19 2366.25 2366.25 2366.25 ZT20-23 2866.45 2866.45 2866.45