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.
['5769', '193', '4675', '2739', 'o', '3141', '2275', '6709', 'C', 'R', 'C', '3333', 'b', 'K', '7603', 'D']