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.
['5335', '7621', 'W', 'W', '907', 'b', '925', 'o', 'R', '7411', 'g', 'k', '7075', 'E', '9233', 'd', 'o', 'W', '3431', '2991']