Incorrect stacktrace by rethrow

I rethrow an exception with "throw;", but the stacktrace is incorrect:

static void Main(string[] args) {
    try {
        try {
            throw new Exception("Test"); //Line 12
        }
        catch (Exception ex) {
            throw; //Line 15
        }
    }
    catch (Exception ex) {
        System.Diagnostics.Debug.Write(ex.ToString());
    }
    Console.ReadKey();
}

The right stacktrace should be:

System.Exception: Test
   at ConsoleApplication1.Program.Main(String[] args) in Program.cs:Line 12

But I get:

System.Exception: Test
   at ConsoleApplication1.Program.Main(String[] args) in Program.cs:Line 15

But line 15 is the position of the "throw;". I have tested this with .NET 3.5.