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.
['3', 'z', 'W', '3171', '4573', '9221', 'y', 'm', 'w', '3033', '2737', '3869', '4879', 'r', '4189']