Sales are good, not just ok, neither great.
Position is "bad" having her last 25 singles at #1.
But about these two things, I think like pimienta said. I "care" about sales, because it's good for the artist to keep active and make more music; I "don't care" about position because in the end it doesn't mean nothing.
For me, only yearly ranking have a bit more meaning because it's like a compilation of all charts in just one