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.
['u', '4721', 'o', '6213', 'k', 'x', 'P', 'O', 't', 'l', 'p', 'U', 'F', 'y', '2941', 'Y', '7011', '4765', '825', 'w', 'm', '215', '7735', 'f', 'Z', '999']