condition mean min max ZT0-3 15.380120000000002 4.573259999999999 25.955350000000003 ZT4-7 0.888858 0.888858 0.888858 ZT8-11 15.000374999999998 15.000374999999998 15.000374999999998 ZT12-15 67.196 57.2791 77.1129 ZT16-19 73.61675 73.61675 73.61675 ZT20-23 69.32390000000001 69.32390000000001 69.32390000000001