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.
['6821', '9333', 'Z', 'y', '329', 'm', '7031', '3645', '4081', 'Y', 'F', '8073', '8661', 'W', 'V', 'K', 'F', 'J', '6457', '8397', '9457', 'D', 'E']