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.
['3933', '4917', 's', '2679', '269', '6987', '809', '3775', '91', '2529', 'M', '4091', '2137', 'n', 'N', '2553', 'N', 'F']