Why does my method sometimes print multiple lines?

So I Have this method

public int sumMathRandomAndSystemTime(){

    n = 1 + ((int) (Math.random() * 10)+ 
            (int) (System.currentTimeMillis() % 10));

    if(n > 10){
        sumMathRandomAndSystemTime();
    }
    System.out.println(n);
    return n;

}  

All I want is to print one random number (n) between 1 and 10 once. But for some reason, when I call the method it does print a random number, but some times only once, other times it prints the number like 10 times, 5 times, etc. Why is this happening?

Here's an example of my output

10
10
10
10
10