condition mean min max ZT0-3 7928.55 7928.55 7928.55 ZT4-7 10836.7 10836.7 10836.7 ZT8-11 10631.05 10631.05 10631.05 ZT12-15 10127.5 10127.5 10127.5 ZT16-19 10130.8 10130.8 10130.8 ZT20-23 8634.2 8634.2 8634.2