condition mean min max ZT0-3 0.41319975 0.2975185 0.5288809999999999 ZT4-7 1.029813 1.029813 1.029813 ZT8-11 0.36121000000000003 0.36121000000000003 0.36121000000000003 ZT12-15 0 0 0 ZT16-19 0.3510635 0.3510635 0.3510635 ZT20-23 0.882241 0.882241 0.882241