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', 'g', 'q', 'A', 'o', '2939', 'S', 's', '5609', '4785', '8923', 'e', '8289', '8557', 'v', 'F', 'O', 'j', '5817', 'N', 'X', '6607', '4821']