How much arable land does each country have?

Well, that changes every year. Here are the top 10, as of 2012, measured in thousands of square kilometers:

1. India = 1,562
2. United States = 1,551
3. Russia = 1,197
4. China = 1,065
5. Brazil = 726
6. Australia = 471
7. Canada = 459
8. Argentina = 392
9. Nigeria = 350
10. Ukraine = 325