Are Pugs the top dog breeds registered with American Kennel Club in 1999?

I do not have access to real-time information, including specific historical data like dog breed registration numbers from 1999.

To find out if Pugs were the top dog breed registered with the American Kennel Club in 1999, you would need to:

1. Check the American Kennel Club website: They likely have archives of their registration data. Search their website for information about the most popular breeds in 1999.

2. Contact the American Kennel Club: You can reach out to them directly and inquire about their registration records for that year.

I hope this helps!