condition mean min max ZT0-3 2126.85 2126.85 2126.85 ZT4-7 935.3 935.3 935.3 ZT8-11 1027.15 1027.15 1027.15 ZT12-15 2019.55 2019.55 2019.55 ZT16-19 2173.8 2173.8 2173.8 ZT20-23 2392.25 2392.25 2392.25