condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.01645694475 0.0 0.0329138895 ZT8-11 0.01363604875 0.0 0.0272720975 ZT12-15 0.0060782894999999995 0.0 0.012156578999999999 ZT16-19 0.01606138375 0.0 0.0321227675 ZT20-23 0.0077584 0.0 0.0155168