condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.11535999999999999 0.0 0.23071999999999998 ZT16-19 0.1348735 0.073106 0.196641 ZT20-23 0 0 0