condition mean min max ZT0-3 1622.9 1622.9 1622.9 ZT4-7 1211.4 1211.4 1211.4 ZT8-11 1235.4 1235.4 1235.4 ZT12-15 1322.05 1322.05 1322.05 ZT16-19 1658.65 1658.65 1658.65 ZT20-23 1865.85 1865.85 1865.85