Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Rank | Player | Country | Earnings( $ ) | Wins |
| --- | --- | --- | --- | --- |
| 1.0 | Don January | United States | 463393.0 | 11.0 |
| 2.0 | Miller Barber | United States | 421034.0 | 10.0 |
| 3.0 | Arnold Palmer | United States | 258392.0 | 5.0 |
| 4.0 | Gene Littler | United States | 227649.0 | 2.0 |
| 5.0 | Billy Casper | United States | 224589.0 | 3.0 |
Question:
Which country has a rank of 2?
Answer:
United States