condition mean min max ZT0-3 3595.4 3595.4 3595.4 ZT4-7 4297.3 4297.3 4297.3 ZT8-11 6114.9 6114.9 6114.9 ZT12-15 5458.25 5458.25 5458.25 ZT16-19 3921.1 3921.1 3921.1 ZT20-23 2771.35 2771.35 2771.35