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', '3441', '2095', 'H', 'x', 'H', 'z', '3099', 'P', '4945', 'D', 'g', '5279', 't', '4797', '9647', 'U', 'B']