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.
['1521', 'w', 'W', '4323', '5479', '7215', 'I', '8503', 'a', 'w', '7451', 'V', '7653', '203', '4931']