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.
['4829', '8063', '8819', '3259', '8673', '4865', 'I', 'Z', 't', 'd', 'a', 'w', 'f', 'W', 'P', '8933', 'z', 'j']