condition mean min max ZT0-3 0.0305419 0.0305419 0.0305419 ZT4-7 0.08956065 0.08956065 0.08956065 ZT8-11 0.062118900000000005 0.062118900000000005 0.062118900000000005 ZT12-15 0.0539409 0.0539409 0.0539409 ZT16-19 0.0357407 0.0357407 0.0357407 ZT20-23 0.0848566 0.0848566 0.0848566