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.
['1823', '1343', 'R', '7047', '7537', 'X', '691', 'j', '8939', '7621', '431', '8675', 'a', '8907', '6317']