condition mean min max ZT0-3 3132.25 3132.25 3132.25 ZT4-7 3472.8 3472.8 3472.8 ZT8-11 2866.45 2866.45 2866.45 ZT12-15 2876.6 2876.6 2876.6 ZT16-19 2591.75 2591.75 2591.75 ZT20-23 2150.8500000000004 2150.8500000000004 2150.8500000000004