The ratio of prime to composite numbers

Prime Numbers: such as 1,2,3,5,7

Composite Numbers: such as 0,4,6,8,9

0: 0 prime number(s)，4 composite number(s)

1: 1 prime number(s)，3 composite number(s)

2: 2 prime number(s)，2 composite number(s)

3: 3 prime number(s)，1 composite number(s)

4: 4 prime number(s)，0 composite number(s)