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.
['8539', 'Z', 'i', 'p', '5763', 'Y', 'R', '5703', '4929', '9173', 'V', '951', '8335', '923', 'r', '2975', 'U', 'e', 'q', '2837', 'i', 'D', 'l', 'V', 'U', '3023', 'W', '2007']