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.
['4833', '2117', 'D', 'r', 'v', 'D', '131', '2263', 'K', '5453', '4415', '6011', '6433', 'i', '5213', 'D', '8677', 'h', '5617', 'Q', 'a', '8887', 'W', '5629', '1779', '4865', '6051', '6999', '7761', '5421', '7037']