condition mean min max ZT0-3 0.029412933333333335 0.0 0.059047050000000004 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0292549 0.0292549 0.0292549 ZT12-15 0.04709615 0.0292748 0.0649175 ZT16-19 0.05569415 0.05569415 0.05569415 ZT20-23 0.0 0.0 0.0