condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.4225715258333334 0.1807107636666667 0.6644322880000001 ZT8-11 0.0310581875 0.0 0.062116375 ZT12-15 0.0 0.0 0.0 ZT16-19 0.09745730866666666 0.0 0.19491461733333332 ZT20-23 0.037775936499999996 0.0 0.07555187299999999