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.
['4637', '2321', '7347', '7249', '9539', 'S', '9519', '4043', '8579', 'Z', 'W', '1507']