condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.010599583333333332 0.010599583333333332 0.010599583333333332 ZT8-11 0.006176350000000001 0.006176350000000001 0.006176350000000001 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0029788 0.0029788 0.0029788 ZT20-23 0.0 0.0 0.0