condition mean min max ZT0-3 70.91725 70.91725 70.91725 ZT4-7 12.306999999999999 12.306999999999999 12.306999999999999 ZT8-11 41.03045 41.03045 41.03045 ZT12-15 522.518 522.518 522.518 ZT16-19 397.616 397.616 397.616 ZT20-23 284.872 284.872 284.872