What two countries have the least amount of people per square kilometer?

1. Mongolia - 4 people per square mile

2. Namibia - 6

3. Australia - 7

4. Mauritania - 8

4. Botswana - 8

4. Canada - 8

4. Suriname - 8

4. Iceland - 8

9. Guyana - 9

9. Libya - 9

11. Gabon - 14

12. Kazakhstan - 15

13. Central African Republic - 18