condition mean min max ZT0-3 0.1643504215 0.0 0.328700843 ZT4-7 0.024884919666666668 0.0 0.049769839333333336 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0186404075 0.0 0.037280815 ZT20-23 0.0 0.0 0.0