condition mean min max ZT0-3 1896.8 1896.8 1896.8 ZT4-7 1414.9 1414.9 1414.9 ZT8-11 1238.0 1238.0 1238.0 ZT12-15 1172.45 1172.45 1172.45 ZT16-19 1690.85 1690.85 1690.85 ZT20-23 1892.5 1892.5 1892.5