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 | Metropolitan area | Principal city | 10,000+ places | Densest incorporated place | Density |
| --- | --- | --- | --- | --- | --- |
| 1.0 | New York metropolitan area | New York City | 55.0 | Guttenberg | 56012.0 |
| 2.0 | Greater Los Angeles Area | Los Angeles | 27.0 | Maywood | 23887.2 |
| 3.0 | Delaware Valley | Philadelphia | 8.0 | Millbourne | 13749.1 |
| 4.0 | Miami metropolitan area | Miami | 7.0 | North Bay Village | 20267.1 |
| 5.0 | Greater Boston | Boston | 7.0 | Somerville | 18868.1 |
| 6.0 | Chicagoland | Chicago | 7.0 | Stone Park | 15378.2 |
| 7.0 | San Francisco Bay Area | San Francisco | 6.0 | San Francisco | 17246.4 |
| 8.0 | Pittsburgh metropolitan area | Pittsburgh | 3.0 | Pennsbury Village | 12710.3 |
| 9.0 | Louisville-Jefferson County metropolitan area | Louisville | 1.0 | Poplar Hills | 17036.0 |
| 10.0 | Providence metropolitan area | Providence | 1.0 | Central Falls | 15652.0 |
| 11.0 | Washington Metropolitan Area | Washington, D.C. | 1.0 | Mount Rainier | 13038.5 |
| 12.0 | Dallas–Fort Worth Metroplex | Dallas | 1.0 | Mobile City | 11911.3 |
| 13.0 | Buffalo-Niagara Falls metropolitan area | Buffalo | 1.0 | Kenmore | 11437.2 |
| 14.0 | Portland metropolitan area | Portland | 1.0 | Johnson City | 11061.5 |
| 15.0 | Metro Detroit | Detroit | 1.0 | Hamtramck | 10900.5 |
Question:
Name the number of rank for stone park
Answer:
1.0