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 | Location | Mascot | Enrollment | IHSAA Class | # / County | Year Joined |
| --- | --- | --- | --- | --- | --- | --- |
| Austin * | Austin | Eagles | 437.0 | AA | 72 Scott | 1958.0 |
| Brownstown Central | Brownstown | Braves | 611.0 | AAA | 36 Jackson | 1965.0 |
| Charlestown | Charlestown | Pirates | 702.0 | AAA | 10 Clark | 1958.0 |
| Clarksville | Clarksville | Generals | 530.0 | AA | 10 Clark | 1958.0 |
| Corydon Central | Corydon | Panthers | 819.0 | AAA | 31 Harrison | 1958.0 |
| Eastern (Pekin) | New Pekin | Musketeers | 552.0 | AA | 88 Washington | 2003.0 |
| North Harrison | Ramsey | Cougars | 702.0 | AAA | 31 Harrison | 1978.0 |
| Salem | Salem | Lions | 656.0 | AAA | 88 Washington | 1958.0 |
| Scottsburg | Scottsburg | Warriors | 865.0 | AAA | 72 Scott | 1958.0 |
| Silver Creek | Sellersburg | Dragons | 644.0 | AAA | 10 Clark | 1958.0 |
Question:
what is the enrollement for the year joined 1958 in clarksville?
Answer:
530.0