Altmetric has tracked 4,118,847 articles across all sources so far. Compared to these this article has done particularly well and is in the 97th percentile: it's in the top 5% of all articles ever tracked by Altmetric.
So far Altmetric has tracked 572 articles from this source. They typically receive a little more attention than average, with a mean score of 5.5. This article has done particularly well, scoring higher than 98% of its peers.
Older articles will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this score to the 76,672 tracked articles that were published within six weeks on either side of this one in any source. This article has done particularly well, scoring higher than 98% of its contemporaries.
We're also able to compare this article to 8 articles from the same source and published within six weeks on either side of this one. This article has scored higher than all of them