Does not mean anything. Some of the countries with only 1 request may be violent police-states where they torture the person to get the information directly; instead of asking for indirect data from Facebook.
As we have said many times, we believe that while governments have an important responsibility to keep people safe, it is possible to do so while also being transparent. Government transparency and public safety are not mutually exclusive ideals. Each can exist simultaneously in free and open societies, and they help make us stronger. We strongly encourage all governments to provide greater transparency about their efforts aimed at keeping the public safe, and we will continue to be aggressive advocates for greater disclosure.