condition mean min max ZT0-3 948.2 948.2 948.2 ZT4-7 826.6 826.6 826.6 ZT8-11 1063.0 1063.0 1063.0 ZT12-15 987.15 987.15 987.15 ZT16-19 924.55 924.55 924.55 ZT20-23 815.6 815.6 815.6