The phrase "albeit declining" is correct and usable in written English.
It can be used to acknowledge a situation or condition that is true, while also indicating that it is diminishing or decreasing.
Example: "The company's profits have been strong, albeit declining over the past few quarters."
Alternatives: "although decreasing" or "even if diminishing".
The study found that the overall combat readiness of naval aviation was "largely being maintained at acceptable, albeit declining, levels".
Another important factor in the success of the country's theater may be Australia'a still relatively generous, albeit declining, level of fiscal support.
Though music is "the perfect digital medium", there is still a decent, albeit declining, market for CDs more than 86m albums were sold in Britain in 2011.
Deforestation is a major source of carbon emissions, and it has been occurring at an alarming, albeit declining, rate in tropical forests.
On long-term monitoring, HPC-derived hematopoietic cells remained detectable in both the allogenic and syngeneic mice, albeit declining with time.
Moreover, since sample collection took place over the broad geographic range of the subspecies when Central Asian tiger populations were still large, albeit declining, the low endemic mtDNA diversity (relative to other subspecies) indicates that low variability was a natural genetic feature of the 19th century Caspian tiger population and not an anthropogenic effect.
Agriculture remains a part (albeit a declining one) of island culture.
The bank thinks there will also be declines in the United States and France by then, while the U.N. forecast has both countries continuing to grow, albeit at declining rates.
The company has an asbestos liability, albeit contained, declining and well financed by insurance.
All of which sounds like pretty basic functionality — so it's rather surprising it's taken LinkedIn so long to furnish BlackBerry users with such key site functions, especially as BlackBerrys are still likely to be a very relevant demographic for a professional social network (albeit a declining demographic versus Android and iOS users).
The same report framed its findings as "Public continues to support an "active part" of the United States in world affairs," just because the "stay active" percentage was still a majority, albeit rapidly declining.
