condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.24648294550000002 0.0 0.49296589100000004 ZT8-11 0.0 0.0 0.0 ZT12-15 0.04169227350000001 0.0 0.08338454700000002 ZT16-19 0.030269258000000004 0.0 0.06053851600000001 ZT20-23 0.035003416333333336 0.0 0.07000683266666667