condition mean min max ZT0-3 1377.15 1377.15 1377.15 ZT4-7 1340.8 1340.8 1340.8 ZT8-11 1357.2 1357.2 1357.2 ZT12-15 974.55 974.55 974.55 ZT16-19 750.1 750.1 750.1 ZT20-23 903.45 903.45 903.45