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.
['C', '9179', '9805', 'z', '1513', '1907', 'Z', '4745', '6185', '2149', 'R', 'D', '8669']