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.
['6805', 'p', '8243', '8337', 'V', '1023', 'U', 's', 'H', 'R', '3557', 'j', 's', 'g', 'F', '6437', '6891']