While retrievers and german shepherds remain America's favorite dogs, the undisputed big winner of the last decade has to be the French Bulldog. The breed was ranked in the 20s near the start of the decade, and the 60s not long before that. Well done, little guys. Across the board, medium breeds have gradually gained some ground, as have some larger breeds.
Some of the most obvious dips have been the Dachshund, Boxer, Shih Tzu, and Doberman Pinscher, which have consistently dropped in rank yearly after peaking in or near the top ten. Across the board, terriers have become less popular, and some similarly small dogs like the Pug.