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:
| Name | Population (2009 estimate) | Largest City | Largest Metropolitan Area | Number of States |
| --- | --- | --- | --- | --- |
| North | 15,8 million | Manaus | Manaus metropolitan area | 7 |
| Northeast | 53,5 million | Salvador | Recife metropolitan area | 9 |
| Central-West | 13,6 million | Brasília | Brasilia Urban Metropolitan Complex | 3 + DF |
| Southeast | 80,7 million | São Paulo | São Paulo metropolitan area | 4 |
| South | 27,3 million | Curitiba | Porto Alegre metropolitan area | 3 |
Question:
How many states has a 2009 estimate population of 27,3 million?
Answer:
3.0