Count number of occurrences via combobox in user form

[mml]

Hello
Working to get some things automated .On a basic spread sheet I am required to count the number of times a value is entered onto this sheet. This can run into the hundreds. I have tried to simplify with user form but have not been able to find the VBA code to get the " count " of number of times a value is recorded. eg if 12 is selected from combox then the number of times it has been recorded appears in a corresponding field.
I have seen result via pivot table or via list thought possibly in correctly that this could be done via a userform.
Hoping that this is a simple task ???
Thank you for your time

[SamT]

Dim FullCount As long

Private Sub Combobox_Event
'
'
'
FullCount = FullCount + ComboBoxCount
'
'
'End Sub

[snb]

See

or

[mml]

Ok thanks to you both for taking the time providing a solution
I have learnt two things which is appreciated :

1. how to format a better list box -
2. part of the count sub vba

Works perfectly and and will save a ton of time