condition mean min max ZT0-3 11.0264 11.0264 11.0264 ZT4-7 12.617750000000001 12.617750000000001 12.617750000000001 ZT8-11 11.8211 11.8211 11.8211 ZT12-15 10.630155 10.630155 10.630155 ZT16-19 11.8839 11.8839 11.8839 ZT20-23 9.981985 9.981985 9.981985