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.
['1521', 'F', '8791', '4483', '6457', 'w', 'C', '9793', 'T', 'N', '1605', '2157']