Not taking sides here, I just find it funny that both of you claim to be using official online sources, but both of you conveniently forgot to provide a link.
I completely agree. Here is the link. It is a mix of Macedonian and English, page of interest is 34. Total population: 2022547. Albanians: 509083. Pretty clear, around 25.17%.
http://www.stat.gov.mk/Publikacii/knigaXIII.pdf