condition mean min max ZT0-3 5.09335 5.05439 5.13231 ZT4-7 5.014530000000001 5.014530000000001 5.014530000000001 ZT8-11 6.207565000000001 6.207565000000001 6.207565000000001 ZT12-15 0 0 0 ZT16-19 4.810655 4.810655 4.810655 ZT20-23 4.90399 4.90399 4.90399