In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the numerical elements in the given list. Return 0 if no numerical element in the list.
['D', '3317', 'k', 'b', 'O', '2845', '2423', 'w', '9627', 'p', '2821', 'J', 'U', '6537', 'R', '8309', '4387', '9137', 'W', '9005']