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.
['N', '8643', 'B', 'f', 'c', '6793', 'V', '8875', '9917', '3177', '4459', '9731', '9809', '9867', '4519', 'Z', 'K', '8817', 'R']