Random trial

    private static final int[][] numbers = new int[17][1];

    public static void main(String ... args){
        Random rand = new Random();
        for(int i = 0; i < 1000000; i++){
            numbers[rand.nextInt(rand.nextInt(rand.nextInt(15) + 1) + 1)][0]++;
            if(i % 100 == 0)
                System.out.println(i);
        }
        for(int[] ints:numbers){
            System.out.print(((double)ints[0])/1000000+"% \t");
        }
    }