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.
['O', 'G', '9803', '4729', 'e', 'W', '8273', 'R', '477', '1203', '2143', 'H', 'W', '6665', 'h', 'G', '8555', 'z', '127', '8115', '7543']