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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1958 | 1 |
| 1971 | 1 |
| 1974 | 2 |
| 1975 | 2 |
| 1978 | 1 |
| 1982 | 3 |
| 1983 | 1 |
| 1985 | 1 |
| 1986 | 2 |
| 1987 | 2 |
| 1989 | 2 |
| 1990 | 2 |
| 1991 | 3 |
| 1992 | 1 |
| 1993 | 1 |
| 1996 | 1 |
| 1999 | 4 |
| 2000 | 1 |
| 2005 | 2 |
| 2007 | 1 |
| 2009 | 2 |
| 2023 | 0 |