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:
| Year | Opponent | Competition | Score | Venue | Attendance |
| --- | --- | --- | --- | --- | --- |
| 1951.0 | South Sydney Rabbitohs | NSWRFL | 14-42 | Sydney Sports Ground | 28505.0 |
| 1957.0 | St George Dragons | NSWRFL | 9-31 | Sydney Cricket Ground | 54399.0 |
| 1959.0 | St. George Dragons | NSWRFL | 0-20 | Sydney Cricket Ground | 49457.0 |
| 1968.0 | South Sydney Rabbitohs | NSWRFL | 9-13 | Sydney Cricket Ground | 54255.0 |
| 1970.0 | South Sydney Rabbitohs | NSWRFL | 12-23 | Sydney Cricket Ground | 53241.0 |
| 1982.0 | Parramatta Eels | NSWRFL | 8-21 | Sydney Cricket Ground | 52186.0 |
| 1983.0 | Parramatta Eels | NSWRFL | 6-18 | Sydney Cricket Ground | 40285.0 |
| 1995.0 | Sydney Bulldogs | ARL | 4-17 | Sydney Football Stadium | 41127.0 |
| 1997.0 | Newcastle Knights | ARL | 16-22 | Sydney Football Stadium | 42482.0 |
| 2007.0 | Melbourne Storm * | NRL | 8-34 | ANZ Stadium | 81392.0 |
Question:
When did nswrfl has a score of 8-21?
Answer:
1982.0