condition mean min max ZT0-3 64.85079999999999 64.85079999999999 64.85079999999999 ZT4-7 59.804249999999996 59.804249999999996 59.804249999999996 ZT8-11 59.83265 59.83265 59.83265 ZT12-15 64.7752 64.7752 64.7752 ZT16-19 72.2342 72.2342 72.2342 ZT20-23 85.5096 85.5096 85.5096