condition mean min max ZT0-3 0.23432407500000002 0.16523765 0.3034105 ZT4-7 0.10072729999999999 0.10072729999999999 0.10072729999999999 ZT8-11 0.30373300000000003 0.30373300000000003 0.30373300000000003 ZT12-15 0 0 0 ZT16-19 0.9281155 0.9281155 0.9281155 ZT20-23 0.266474 0.266474 0.266474