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.
['z', '4527', '8215', 'k', '7913', '5267', '5265', '29', '1715', 'V', '6481', 'o', '5967', '821', '1253']