condition mean min max ZT0-3 0.02922830125 0.0 0.0584566025 ZT4-7 0.0 0.0 0.0 ZT8-11 0.01136328075 0.0 0.0227265615 ZT12-15 0.10209146799999999 0.046438430499999996 0.1577445055 ZT16-19 0.04199693525 0.0 0.0839938705 ZT20-23 0.3056936055 0.1890796955 0.4223075155