$1$

$\frac6{30}=0{,}2\approx20\,\%$

$2$

$\frac3{30}=0{,}1\approx10\,\%$

$3$

$\frac6{30}=0{,}2\approx20\,\%$

$4$

$\frac9{30}=0{,}3\approx30\,\%$

$5$

$\frac2{30}=0{,}06666\approx7\,\%$