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.
['D', 'B', '209', '3851', 'g', 'C', 'N', '2795', 'C', '4545', 'n', '6419', '8699', 'a', 'U', '5225', '4431', 'Q']