You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "how many vietnamese immigrants are in the united states?" whose answer is 2,067,527.
Each document should contain about 30 words, and these documents should contain useful information.

Query: number of vietnamese immigrants in the united states
Useful Output:

Doc 1: Vietnamese in the U.S. Fact Sheet ; 500K ; % among those ages 5 and older who are English proficient. 54% 90% 35% 48% 72% All ; % of those ages 25
Doc 2: There are over 1.3 million Vietnamese American adults eligible to vote and over 105,829 naturalizing over the latest four-year cycle. (American
Doc 3: More than 2 million Vietnamese Americans lived in the United States as of 2022, according to data from the US Census Bureau. They make up 8% of the country's
Doc 4: Among the 2.4 million Vietnamese immigrants in the United States, the Center for Migration Studies estimates that roughly 104,000 are
Doc 5: As such, Vietnamese immigrants are one of the largest foreign-born groups in the United States, constituting around 2.98% of the total US