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 | City | Team Name | Enrollment 08-09 | IHSAA Class | IHSAA Class Football | County | Year Joined (Or Joining) | Previous Conference |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Batesville | Batesville | Bulldogs | 677.0 | AAA | AAA | 69 Ripley | 1956.0 | Southeastern Indiana |
| Connersville | Connersville | Spartans | 1337.0 | AAAA | AAAA | 21 Fayette | 2013.0 | Independents |
| East Central | St. Leon | Trojans | 1440.0 | AAAA | AAAA | 15 Dearborn | 1973.0 | none (new school) |
| Franklin County | Brookville | Wildcats | 969.0 | AAA | AAAA | 24 Franklin | 1989.0 | none (new school) |
| Greensburg | Greensburg | Pirates | 643.0 | AAA | AAA | 16 Decatur | 1978.0 | South Central |
| Lawrenceburg | Lawrenceburg | Tigers | 528.0 | AAA | AAA | 15 Dearborn | 1956.0 | Southeastern Indiana |
| Rushville | Rushville | Lions | 821.0 | AAA | AAA | 70 Rush | 2013.0 | Hoosier Heritage |
| South Dearborn | Aurora | Knights | 973.0 | AAA | AAAA | 15 Dearborn | 1978.0 | none (new school) |
Question:
What year did the team from City of Aurora join?
Answer:
1978.0