condition mean min max ZT0-3 144.708345 144.708345 144.708345 ZT4-7 82.569124 82.569124 82.569124 ZT8-11 84.52678 84.52678 84.52678 ZT12-15 97.18375900000001 97.18375900000001 97.18375900000001 ZT16-19 85.08925500000001 85.08925500000001 85.08925500000001 ZT20-23 73.057677 73.057677 73.057677