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:
| School | Team Name | Town | County | School Enrollment (2008–10) | Football? |
| --- | --- | --- | --- | --- | --- |
| De Kalb High School | Tigers | De Kalb | Buchanan | 118.0 | Y |
| Jefferson Conception Junction High School | (Lady) Eagles | Conception Junction | Nodaway | 50.0 | N |
| Osborn High School | Wildcats/ Lady Cats | Osborn | De Kalb | 40.0 | N |
| North Andrew High School | Cardinals | Rosendale | Andrew | 105.0 | Y |
| Northeast Nodaway High School | BlueJays | Ravenwood | Nodaway | 73.0 | N |
| Southwest Livingston High School | Wildcats | Ludlow | Livingston | 65.0 | Y (football only) |
| South Nodaway High School | Longhorns | Barnard | Nodaway | 71.0 | Y |
| Stewartsville High School | Cardinals | Stewartsville | De Kalb | 88.0 | Y |
| Union Star High School | Trojans | Union Star | De Kalb | 47.0 | Y |
Question:
What is the highest number of school enrollment for Union Star High School in De Kalb county?
Answer:
47.0