How many "Tiffany Hsu's" are there?

Here are the stats according to this website:

• There are 11 people in the U.S. named Tiffany Hsu.
• There are 297,108 people in the U.S. with the first name Tiffany.
• Tiffany is the 215th most popular first name.
• There are 10,848 people in the U.S. with the last name Hsu.
• Hsu is the 3,455th most popular last name.