condition mean min max ZT0-3 1212.4 1212.4 1212.4 ZT4-7 1109.8 1109.8 1109.8 ZT8-11 1042.15 1042.15 1042.15 ZT12-15 977.0 977.0 977.0 ZT16-19 1100.8 1100.8 1100.8 ZT20-23 1237.1 1237.1 1237.1