condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.03528255 0.03528255 0.03528255 ZT8-11 0.1037649 0.1037649 0.1037649 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.06849435000000001 0.06849435000000001 0.06849435000000001