condition mean min max ZT0-3 0.0103519585 0.0 0.020703917 ZT4-7 0.24590088799999998 0.04170248399999999 0.450099292 ZT8-11 0.007764546833333333 0.0 0.015529093666666665 ZT12-15 0.00949224 0.0 0.01898448 ZT16-19 0.05948570566666666 0.012426938333333333 0.10654447299999999 ZT20-23 0.047219920500000005 0.0 0.09443984100000001