frequency in array

static int[] numbers = { 1, 3, 4, 4, 6, 1, 1, 8, 0 };
static void Main(string[] args)
{
foreach (int number in numbers)
{
Console.WriteLine("{0}: {1}",number, Frequency(number));
}

}
static int Frequency(int number)
{
return (from n in numbers
where n==number
select n).Count();
}