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.
['5507', '1765', '5099', '2269', 'l', '615', 'M', 'C', 'M', 'b', 'P', '7267', 'J', 'X', 'f', 'R', '4415', '3437', 'Q', 'B', 't', 'y', '7519', 'z', 'u', '1677', '4727', 'n', 'S', '2721', '9975', 'P', 'X']