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', '6239', '4751', 'e', 'P', 'p', '7745', 'W', '7007', 'N', '6775', 'W', 'E', '659', 'k', 'J', 'a', '793', 'a', 'M', 'l', '5149', '4259', '6485', 'k', '8929']