In theory and practice you need to provide PCC from every country that you have stayed over 6 month. You need to add up all trips that you made to this country even for one day and then see if it goes above or not.
If it doesn't and you are sure that you have calculated it properly than you are good to go.
Advice to request it anyway it's only to avoid problems with officer that are not enough miticolous to check your application correctly, which might lead to some unpleasure situation :/