condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.029826500000000002 0.029826500000000002 0.029826500000000002 ZT12-15 0.019603433333333333 0.019603433333333333 0.019603433333333333 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0