Hello, I'm working with this dataset
Array

and I want to run a fixed effects regression, so I type the following comands

egen educ_exper=group(educ exper)
sort educ_exper year
xtset educ_exper year
xtreg logmeanwages share i.year, fe

but I get the following output

Array

And I trully don't know what's going on and why I don't get any value. I tried this method before with another dataset and it worked, so I don't know what happened.

Thanks.