condition mean min max ZT0-3 54.9499 54.9499 54.9499 ZT4-7 45.043949999999995 45.043949999999995 45.043949999999995 ZT8-11 43.61025 43.61025 43.61025 ZT12-15 47.49235 47.49235 47.49235 ZT16-19 60.72635 60.72635 60.72635 ZT20-23 54.685900000000004 54.685900000000004 54.685900000000004