Count number occurences based on criteria Column

I get this work a lot and am looking for a much more effective way of working the dataset,

I have numbers like 1.1, 1.2, 1.3 and so on.......
These come under criteria like (1) = 1.1, 1.2, 1.3 and so on.....

I am look for an automated way of doing a count of any number that falls under this criteria, so I want to count based on criteria (1) it would count all 1.1,1.2,1.3 and so on as one count.

Hope this is clear, I am attaching a sample document to see how it is laid out and if you have any questions please ask

Appreciate your help on this guys

Code Counts.xlsx

Well I put a value in cell B1 and then used this formula:

=SUMPRODUCT(--(LEFT(A1:A55,LEN(B1))=LEFT(B1,LEN(B1))))

Will return the number of values in column A that start with the value in B1.

I don't really get this, it returns 0 if I use it in the worksheet labeled "put counts of criteria here".

Care to shed some light on what you mean or use the excel sheet as an example?