Hi there,

I have a Dataset with Observations for lots of ID's in many years. These all have attributes so they belong into defined groups (Binary 1 in group variable).
Now I'd like to know how many belong into each group for every year. I could do this for every year again and again but I hope there is a faster way to analyze every year at the same time so that I still get the numbers for each year seperately.
Could you help me with that?

Any help is greatly apreciated.

Kind regards