Here's a short story:

From 1989 through 1996, the total area of the US was listed as 9,372,610 km2 (3,618,780 sq mi) (land + inland water only). The listed total area changed to 9,629,091 km2 (3,717,813 sq mi) in 1997 (Great Lakes area and coastal waters added), to 9,631,418 km2 (3,718,711 sq mi) in 2004, to 9,631,420 km2 (3,718,710 sq mi) in 2006, and to 9,826,630 km2 (3,794,080 sq mi) in 2007 (territorial waters added). Currently, the CIA World Factbook gives 9,826,675 km2 (3,794,100 sq mi), the United Nations Statistics Division gives 9,629,091 km2 (3,717,813 sq mi), and the Encyclopædia Britannica gives 9,522,055 km2 (3,676,486 sq mi)(Great Lakes area included but not coastal waters). These source consider only the 50 states and the Federal District, and exclude overseas territories. 

By total area (water as well as land), the United States is either slightly larger or smaller than the People's Republic of China, making it the world's third or fourth largest country. China and the United States are smaller than Russia and Canada in total area, but are larger than Brazil. By land area only (exclusive of waters), the United States is the world's third largest country, after Russia and China, with Canada in fourth. Whether the US or China is the third largest country by total area depends on two factors: (1) The validity of China's claim on Aksai Chin and Trans-Karakoram Tract. Both these territories are also claimed by India, so are not counted; and (2) How US calculates its own surface area. Since the initial publishing of the World Factbook, the CIA has updated the total area of United States a number of times. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: Is the US larger than China?
Guess: Maybe according to how it is measured

Question: Is it larger than Russia?
Guess: No

Question: How does the US rank in size with land only?
Guess: third largest country

Question: Who is larger than US?
Guess: Russia and China

Question: What was the US total area listed as in 1992?
Guess: 9,372,610 km2

Question: what areas did that include?
Guess: land + inland water only

Question: what did the area change to when they added the Great Lakes and Coastal water?
Guess: 9,629,091 km2

Question: when was that?
Guess: 1997

Question: What did they add later on?
Guess: territorial waters

Question: when?
Guess: 2007

Question: what did that bring the total area to?
Guess: 9,826,630 km2

Question: Which source currently lists the US area the largest amount?
Guess: CIA World Factbook

Question: what does it list?
Guess: 9,826,675 km2

Question: which source lists the smallest area?
Guess: Encyclopædia Britannica

Question: what is it?
Guess: 9,522,055 km2

Now answer the following question in the same format.

Question: are there any other sources?

United Nations Statistics Division