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.
['z', '1817', 'H', 'J', 'r', '7693', 'S', 'o', '7949', 'p', '6889', 'C']