The conversation between human and AI assistant.
[|Human|] From the following article, tell me the information related to the most recent year and what the largest number in the article is referring to.
[|AI|] The most recent year is 2021, the year Austria was ranked 25th in the Human Development Index. The largest number is 9 million, referring to the population of Austria.
[|Human|] 
From the following article, tell me the information related to the most recent year and what the largest number in the article is referring to.