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.
['x', 'r', '3129', 't', '2575', '2275', '3709', '405', 'D', 'W', 'A', '3901', '8035', 'H', '5511', '8455']