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:
| Local Government Area | Type | Major Town | Land Area (km²) | Pop. 2006 | Density km −2 | Towns | Est. |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Roxby Downs | Municipal Council | Roxby Downs | 110 | 4292.0 | 39018.0 | 2.0 | 1982.0 |
| Coober Pedy | District Council | Coober Pedy | 77,8 | 1996.0 | 25656.0 | 1.0 | 1987.0 |
| Anangu Pitjantjatjara Yankunytjatjara | Aboriginal Council | Umuwa | 102650 | 2204.0 | 21.0 | 18.0 | 1981.0 |
| Maralinga Tjarutja 1) | Aboriginal Council | Oak Valley | 102863,6 | 105.0 | 1.0 | 1.0 | 1984.0 |
| Yalata | Aboriginal Council | Yalata | 4563 | 100.0 | 22.0 | 1.0 | 1994.0 |
| Nepabunna | Aboriginal Council | Nepabunna, South Australia | 76,4 | 49.0 | 641.0 | 1.0 | 1998.0 |
| Outback Areas Community Development Trust | Unincorporated Area | Leigh Creek | 624339.0 | 3750.0 | 6.0 | 36.0 | 1978.0 |
Question:
On what year was the local government area with a surface of 4563 square kilometers established?
Answer:
1994.0