condition mean min max ZT0-3 929.65 929.65 929.65 ZT4-7 1133.8 1133.8 1133.8 ZT8-11 1196.3 1196.3 1196.3 ZT12-15 1414.6 1414.6 1414.6 ZT16-19 1294.35 1294.35 1294.35 ZT20-23 1077.7 1077.7 1077.7