condition mean min max ZT0-3 11.2158 11.2158 11.2158 ZT4-7 13.082966500000001 13.082966500000001 13.082966500000001 ZT8-11 10.915157 10.915157 10.915157 ZT12-15 10.957241 10.957241 10.957241 ZT16-19 10.220087 10.220087 10.220087 ZT20-23 9.880857500000001 9.880857500000001 9.880857500000001