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.
['R', '3683', 'L', 'Y', 'D', '1357', '6341', '1837', 'v', 'a', 'N', '6543', '1217', '2191', '4573', 'U', 'W', '4865', 'n', '5605']