US Mint News Blog:
With 2016 behind us, we now have complete mintage information for 2015-dated bullion coins, and it’s a good time to consider these totals in comparison to figures from other recent years.
Silver Eagles famously had another record year in 2015, improving upon 2014’s previous all-time high by nearly three million coins.
http://mintnewsblog.com/2016/01/end-of-2015-cumulative-bullion-sales-update/