I'm seeing 72.4 from your source (last updated just over a month ago) vs 74% from the NYT. I'm guessing your source is just slightly older?
+1.6% in the past month seems reasonable to me
+1.6% in the past month seems reasonable to me
Surely you are not adding 3rd + 4th dose together? You can't do that. They are the same group of people. If everyone who got the 3rd shot got the 4th today, 108% of Finnish population would be boosted?