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.
['P', '2135', '841', '9415', 'W', '7301', 'p', '2933', 'r', '2779', '4589', '4813', '2373']